./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.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_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 922786d1b563f399f230d6bc6e72c1342da4d1a5 ................................................................................................................................................................................................................................................................................... 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_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 922786d1b563f399f230d6bc6e72c1342da4d1a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:22:13,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:22:13,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:22:13,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:22:13,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:22:13,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:22:13,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:22:13,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:22:13,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:22:13,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:22:13,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:22:13,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:22:13,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:22:13,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:22:13,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:22:13,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:22:13,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:22:13,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:22:13,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:22:13,165 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:22:13,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:22:13,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:22:13,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:22:13,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:22:13,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:22:13,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:22:13,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:22:13,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:22:13,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:22:13,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:22:13,171 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:22:13,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:22:13,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:22:13,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:22:13,173 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:22:13,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:22:13,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:22:13,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:22:13,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:22:13,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:22:13,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:22:13,175 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:22:13,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:22:13,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:22:13,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:22:13,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:22:13,185 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:22:13,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:22:13,186 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:22:13,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:22:13,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:22:13,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:22:13,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:22:13,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:22:13,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:22:13,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:22:13,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:22:13,188 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_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-12-07 15:22:13,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:22:13,295 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:22:13,297 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:22:13,298 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:22:13,299 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:22:13,299 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-12-07 15:22:13,336 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/6917be187/558639399775494f885b3660e026984a/FLAGf887f6835 [2019-12-07 15:22:13,690 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:22:13,690 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-12-07 15:22:13,695 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/6917be187/558639399775494f885b3660e026984a/FLAGf887f6835 [2019-12-07 15:22:13,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/6917be187/558639399775494f885b3660e026984a [2019-12-07 15:22:13,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:22:13,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:22:13,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:22:13,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:22:13,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:22:13,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa9bba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13, skipping insertion in model container [2019-12-07 15:22:13,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:22:13,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:22:13,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:22:13,870 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:22:13,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:22:13,902 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:22:13,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13 WrapperNode [2019-12-07 15:22:13,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:22:13,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:22:13,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:22:13,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:22:13,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:22:13,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:22:13,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:22:13,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:22:13,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... [2019-12-07 15:22:13,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:22:13,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:22:13,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:22:13,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:22:13,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 15:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:22:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:22:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:22:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:22:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:22:14,154 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:22:14,154 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:22:14,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:14 BoogieIcfgContainer [2019-12-07 15:22:14,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:22:14,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:22:14,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:22:14,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:22:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:22:13" (1/3) ... [2019-12-07 15:22:14,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18569f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:22:14, skipping insertion in model container [2019-12-07 15:22:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:13" (2/3) ... [2019-12-07 15:22:14,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18569f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:22:14, skipping insertion in model container [2019-12-07 15:22:14,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:14" (3/3) ... [2019-12-07 15:22:14,161 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-12-07 15:22:14,167 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:22:14,172 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:22:14,179 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:22:14,194 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:22:14,194 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:22:14,194 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:22:14,195 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:22:14,195 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:22:14,195 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:22:14,195 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:22:14,195 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:22:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-12-07 15:22:14,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:22:14,208 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:22:14,208 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:22:14,209 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:22:14,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:22:14,213 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-12-07 15:22:14,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:22:14,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982606474] [2019-12-07 15:22:14,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:22:14,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:22:14,292 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 15:22:14,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982606474] [2019-12-07 15:22:14,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:22:14,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:22:14,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823009930] [2019-12-07 15:22:14,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:22:14,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:22:14,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:22:14,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:22:14,307 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-12-07 15:22:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:22:14,319 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-12-07 15:22:14,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:22:14,320 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 15:22:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:22:14,326 INFO L225 Difference]: With dead ends: 46 [2019-12-07 15:22:14,327 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 15:22:14,329 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 15:22:14,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 15:22:14,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 15:22:14,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 15:22:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-12-07 15:22:14,351 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-12-07 15:22:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:22:14,351 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-12-07 15:22:14,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:22:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-12-07 15:22:14,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:22:14,352 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:22:14,352 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:22:14,352 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:22:14,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:22:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-12-07 15:22:14,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:22:14,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383347123] [2019-12-07 15:22:14,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:22:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:22:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:22:14,423 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:22:14,424 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:22:14,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:22:14 BoogieIcfgContainer [2019-12-07 15:22:14,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:22:14,442 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:22:14,442 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:22:14,442 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:22:14,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:14" (3/4) ... [2019-12-07 15:22:14,445 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:22:14,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:22:14,446 INFO L168 Benchmark]: Toolchain (without parser) took 739.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -90.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:14,447 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:22:14,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:14,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.46 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 15:22:14,448 INFO L168 Benchmark]: Boogie Preprocessor took 19.74 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 15:22:14,448 INFO L168 Benchmark]: RCFGBuilder took 206.47 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:14,449 INFO L168 Benchmark]: TraceAbstraction took 285.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:14,449 INFO L168 Benchmark]: Witness Printer took 3.15 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 15:22:14,451 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 955.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.46 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 19.74 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 206.47 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.15 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: 74]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L68] double x = 0.0 / 0.0; [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L70] double res = trunc_double(x); [L15] return x != x; [L73] COND TRUE !isnan_double(res) [L74] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 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=24occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 15:22:15,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:22:15,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:22:15,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:22:15,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:22:15,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:22:15,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:22:15,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:22:15,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:22:15,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:22:15,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:22:15,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:22:15,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:22:15,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:22:15,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:22:15,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:22:15,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:22:15,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:22:15,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:22:15,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:22:15,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:22:15,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:22:15,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:22:15,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:22:15,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:22:15,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:22:15,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:22:15,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:22:15,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:22:15,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:22:15,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:22:15,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:22:15,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:22:15,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:22:15,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:22:15,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:22:15,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:22:15,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:22:15,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:22:15,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:22:15,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:22:15,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:22:15,900 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:22:15,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:22:15,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:22:15,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:22:15,901 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:22:15,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:22:15,901 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:22:15,902 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:22:15,903 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:22:15,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:22:15,903 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:22:15,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:22:15,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:22:15,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:22:15,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:22:15,904 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:22:15,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:22:15,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:22:15,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:22:15,905 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_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-12-07 15:22:16,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:22:16,099 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:22:16,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:22:16,103 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:22:16,103 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:22:16,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-12-07 15:22:16,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/388a1d12f/7a44da140b9c42a8800c04e069255e65/FLAG877a6d9f9 [2019-12-07 15:22:16,576 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:22:16,577 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-12-07 15:22:16,581 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/388a1d12f/7a44da140b9c42a8800c04e069255e65/FLAG877a6d9f9 [2019-12-07 15:22:16,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/data/388a1d12f/7a44da140b9c42a8800c04e069255e65 [2019-12-07 15:22:16,592 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:22:16,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:22:16,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:22:16,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:22:16,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:22:16,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@faaa545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16, skipping insertion in model container [2019-12-07 15:22:16,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:22:16,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:22:16,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:22:16,727 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:22:16,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:22:16,798 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:22:16,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16 WrapperNode [2019-12-07 15:22:16,799 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:22:16,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:22:16,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:22:16,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:22:16,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:22:16,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:22:16,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:22:16,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:22:16,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... [2019-12-07 15:22:16,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:22:16,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:22:16,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:22:16,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:22:16,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 15:22:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:22:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:22:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:22:17,158 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:22:17,158 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 15:22:17,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:17 BoogieIcfgContainer [2019-12-07 15:22:17,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:22:17,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:22:17,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:22:17,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:22:17,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:22:16" (1/3) ... [2019-12-07 15:22:17,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362c54a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:22:17, skipping insertion in model container [2019-12-07 15:22:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:22:16" (2/3) ... [2019-12-07 15:22:17,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362c54a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:22:17, skipping insertion in model container [2019-12-07 15:22:17,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:17" (3/3) ... [2019-12-07 15:22:17,164 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-12-07 15:22:17,170 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:22:17,175 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:22:17,182 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:22:17,196 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:22:17,196 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:22:17,196 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:22:17,196 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:22:17,197 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:22:17,197 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:22:17,197 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:22:17,197 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:22:17,206 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-12-07 15:22:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:22:17,210 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:22:17,210 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:22:17,210 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:22:17,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:22:17,214 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-12-07 15:22:17,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:22:17,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441383481] [2019-12-07 15:22:17,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 15:22:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:22:17,316 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:22:17,319 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:22:17,328 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 15:22:17,328 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:22:17,331 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 15:22:17,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441383481] [2019-12-07 15:22:17,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:22:17,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:22:17,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372489224] [2019-12-07 15:22:17,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:22:17,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:22:17,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:22:17,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:22:17,345 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-12-07 15:22:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:22:17,357 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-12-07 15:22:17,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:22:17,358 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 15:22:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:22:17,365 INFO L225 Difference]: With dead ends: 46 [2019-12-07 15:22:17,365 INFO L226 Difference]: Without dead ends: 21 [2019-12-07 15:22:17,367 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 15:22:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-07 15:22:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-07 15:22:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-07 15:22:17,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-12-07 15:22:17,389 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-12-07 15:22:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:22:17,390 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-12-07 15:22:17,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:22:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-12-07 15:22:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:22:17,390 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:22:17,390 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:22:17,591 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:22:17,591 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:22:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:22:17,592 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-12-07 15:22:17,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:22:17,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131483314] [2019-12-07 15:22:17,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 15:22:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:22:17,732 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:22:17,733 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:22:17,810 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 15:22:17,810 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:22:18,482 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 15:22:18,482 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131483314] [2019-12-07 15:22:18,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:22:18,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:22:18,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239960841] [2019-12-07 15:22:18,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:22:18,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:22:18,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:22:18,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:22:18,485 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2019-12-07 15:22:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:22:18,973 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-12-07 15:22:18,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:22:18,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-12-07 15:22:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:22:18,975 INFO L225 Difference]: With dead ends: 27 [2019-12-07 15:22:18,975 INFO L226 Difference]: Without dead ends: 20 [2019-12-07 15:22:18,976 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:22:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-07 15:22:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-07 15:22:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-07 15:22:18,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-12-07 15:22:18,979 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2019-12-07 15:22:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:22:18,979 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-07 15:22:18,979 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:22:18,979 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-07 15:22:18,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 15:22:18,979 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:22:18,980 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:22:19,181 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:22:19,181 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:22:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:22:19,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2019-12-07 15:22:19,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:22:19,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [404955141] [2019-12-07 15:22:19,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/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 15:22:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:22:19,301 INFO L264 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 15:22:19,302 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:22:19,422 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 15:22:19,423 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:22:19,566 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 15:22:19,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [404955141] [2019-12-07 15:22:19,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:22:19,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-12-07 15:22:19,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161020503] [2019-12-07 15:22:19,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 15:22:19,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:22:19,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 15:22:19,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-12-07 15:22:19,569 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2019-12-07 15:22:19,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:22:19,784 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-12-07 15:22:19,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 15:22:19,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-12-07 15:22:19,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:22:19,786 INFO L225 Difference]: With dead ends: 20 [2019-12-07 15:22:19,786 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 15:22:19,786 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-12-07 15:22:19,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 15:22:19,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 15:22:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 15:22:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 15:22:19,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-07 15:22:19,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:22:19,787 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:22:19,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 15:22:19,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:22:19,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 15:22:19,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:22:19,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 15:22:20,086 INFO L246 CegarLoopResult]: For program point L31(lines 31 46) no Hoare annotation was computed. [2019-12-07 15:22:20,086 INFO L246 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L242 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point L52-3(lines 30 58) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point L48(lines 48 50) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#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 15:22:20,087 INFO L246 CegarLoopResult]: For program point L73(lines 73 76) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L242 CegarLoopResult]: At program point L32-2(lines 32 37) the Hoare annotation is: false [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 15:22:20,087 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L249 CegarLoopResult]: At program point L78(lines 62 79) the Hoare annotation is: true [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L30(lines 30 58) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L242 CegarLoopResult]: At program point L59(lines 17 60) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L47(lines 47 58) no Hoare annotation was computed. [2019-12-07 15:22:20,088 INFO L246 CegarLoopResult]: For program point L39-1(lines 39 45) no Hoare annotation was computed. [2019-12-07 15:22:20,089 INFO L242 CegarLoopResult]: At program point L39-2(lines 39 45) the Hoare annotation is: false [2019-12-07 15:22:20,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,099 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,100 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,101 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,102 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,103 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:22:20,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,104 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:22:20,104 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:22:20 BoogieIcfgContainer [2019-12-07 15:22:20,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:22:20,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:22:20,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:22:20,107 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:22:20,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:22:17" (3/4) ... [2019-12-07 15:22:20,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 15:22:20,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 15:22:20,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 15:22:20,119 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 15:22:20,137 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 15:22:20,137 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \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 15:22:20,138 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \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 15:22:20,157 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_23208eda-ae36-41f3-965f-ac4b5f93ba11/bin/uautomizer/witness.graphml [2019-12-07 15:22:20,158 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:22:20,159 INFO L168 Benchmark]: Toolchain (without parser) took 3566.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 984.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:20,159 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:22:20,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:20,160 INFO L168 Benchmark]: Boogie Procedure Inliner 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:20,160 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 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 15:22:20,160 INFO L168 Benchmark]: RCFGBuilder took 304.12 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:20,161 INFO L168 Benchmark]: TraceAbstraction took 2946.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.0 MB in the end (delta: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 11.5 GB. [2019-12-07 15:22:20,161 INFO L168 Benchmark]: Witness Printer took 51.23 ms. Allocated memory is still 1.2 GB. Free memory is still 984.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:22:20,163 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 304.12 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2946.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.0 MB in the end (delta: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 11.5 GB. * Witness Printer took 51.23 ms. Allocated memory is still 1.2 GB. Free memory is still 984.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 74]: 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: 15]: Loop Invariant [2019-12-07 15:22:20,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,167 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,168 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \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: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-12-07 15:22:20,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,169 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,170 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,170 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \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: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2019-12-07 15:22:20,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:22:20,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 15:22:20,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 15:22:20,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 15:22:20,171 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 112 SDs, 0 SdLazy, 57 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 62 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 6 QuantifiedInterpolants, 4765 SizeOfPredicates, 17 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...