./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:02:48,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:02:48,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:02:48,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:02:48,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:02:48,142 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:02:48,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:02:48,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:02:48,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:02:48,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:02:48,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:02:48,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:02:48,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:02:48,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:02:48,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:02:48,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:02:48,157 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:02:48,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:02:48,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:02:48,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:02:48,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:02:48,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:02:48,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:02:48,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:02:48,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:02:48,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:02:48,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:02:48,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:02:48,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:02:48,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:02:48,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:02:48,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:02:48,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:02:48,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:02:48,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:02:48,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:02:48,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:02:48,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:02:48,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:02:48,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:02:48,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:02:48,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 09:02:48,204 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:02:48,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:02:48,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:02:48,205 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:02:48,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:02:48,206 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:02:48,206 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:02:48,206 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:02:48,206 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:02:48,206 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:02:48,207 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:02:48,207 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:02:48,207 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:02:48,207 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:02:48,207 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:02:48,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:02:48,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:02:48,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:02:48,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:02:48,210 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:02:48,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:02:48,210 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:02:48,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:02:48,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:02:48,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:02:48,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:02:48,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:02:48,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:02:48,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:02:48,212 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:02:48,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:02:48,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:02:48,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:02:48,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:02:48,213 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2020-12-09 09:02:48,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:02:48,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:02:48,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:02:48,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:02:48,398 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:02:48,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-12-09 09:02:48,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/738797186/76b2d0a280c2456bb92ee9d2fd6eaa75/FLAG0c7f684b7 [2020-12-09 09:02:48,802 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:02:48,802 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-12-09 09:02:48,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/738797186/76b2d0a280c2456bb92ee9d2fd6eaa75/FLAG0c7f684b7 [2020-12-09 09:02:48,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/738797186/76b2d0a280c2456bb92ee9d2fd6eaa75 [2020-12-09 09:02:48,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:02:48,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:02:48,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:02:48,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:02:48,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:02:48,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:02:48" (1/1) ... [2020-12-09 09:02:48,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6645a100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:48, skipping insertion in model container [2020-12-09 09:02:48,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:02:48" (1/1) ... [2020-12-09 09:02:48,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:02:48,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:02:48,979 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2020-12-09 09:02:48,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:02:48,987 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:02:49,011 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2020-12-09 09:02:49,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:02:49,022 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:02:49,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49 WrapperNode [2020-12-09 09:02:49,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:02:49,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:02:49,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:02:49,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:02:49,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:02:49,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:02:49,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:02:49,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:02:49,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... [2020-12-09 09:02:49,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:02:49,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:02:49,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:02:49,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:02:49,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 09:02:49,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:02:49,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:02:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 09:02:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 09:02:49,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:02:49,735 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 09:02:49,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:49 BoogieIcfgContainer [2020-12-09 09:02:49,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:02:49,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:02:49,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:02:49,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:02:49,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:02:48" (1/3) ... [2020-12-09 09:02:49,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6311adb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:02:49, skipping insertion in model container [2020-12-09 09:02:49,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:49" (2/3) ... [2020-12-09 09:02:49,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6311adb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:02:49, skipping insertion in model container [2020-12-09 09:02:49,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:49" (3/3) ... [2020-12-09 09:02:49,743 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-12-09 09:02:49,752 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:02:49,755 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:02:49,762 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:02:49,778 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:02:49,779 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:02:49,779 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:02:49,779 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:02:49,779 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:02:49,779 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:02:49,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:02:49,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:02:49,788 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-09 09:02:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 09:02:49,791 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:02:49,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 09:02:49,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:02:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:02:49,795 INFO L82 PathProgramCache]: Analyzing trace with hash -2078407839, now seen corresponding path program 1 times [2020-12-09 09:02:49,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:02:49,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051923953] [2020-12-09 09:02:49,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:02:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:02:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:02:49,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051923953] [2020-12-09 09:02:49,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:02:49,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:02:49,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55250929] [2020-12-09 09:02:49,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 09:02:49,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 09:02:49,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 09:02:49,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 09:02:49,909 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-09 09:02:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:02:49,921 INFO L93 Difference]: Finished difference Result 45 states and 71 transitions. [2020-12-09 09:02:49,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 09:02:49,922 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 09:02:49,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:02:49,929 INFO L225 Difference]: With dead ends: 45 [2020-12-09 09:02:49,929 INFO L226 Difference]: Without dead ends: 21 [2020-12-09 09:02:49,931 INFO L677 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 [2020-12-09 09:02:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-09 09:02:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-09 09:02:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-09 09:02:49,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2020-12-09 09:02:49,959 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 6 [2020-12-09 09:02:49,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:02:49,959 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2020-12-09 09:02:49,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 09:02:49,960 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2020-12-09 09:02:49,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 09:02:49,960 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:02:49,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:02:49,961 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:02:49,961 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:02:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:02:49,962 INFO L82 PathProgramCache]: Analyzing trace with hash -218413506, now seen corresponding path program 1 times [2020-12-09 09:02:49,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:02:49,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531587157] [2020-12-09 09:02:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:02:50,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:02:50,003 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:02:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:02:50,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:02:50,045 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 09:02:50,045 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 09:02:50,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 09:02:50,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:02:50 BoogieIcfgContainer [2020-12-09 09:02:50,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:02:50,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:02:50,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:02:50,066 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:02:50,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:49" (3/4) ... [2020-12-09 09:02:50,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 09:02:50,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:02:50,072 INFO L168 Benchmark]: Toolchain (without parser) took 1251.52 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 60.4 MB in the beginning and 82.0 MB in the end (delta: -21.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,072 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:02:50,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.22 ms. Allocated memory is still 92.3 MB. Free memory was 60.1 MB in the beginning and 66.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.10 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 64.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,074 INFO L168 Benchmark]: Boogie Preprocessor took 32.93 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 62.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,075 INFO L168 Benchmark]: RCFGBuilder took 638.94 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 62.9 MB in the beginning and 105.1 MB in the end (delta: -42.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,076 INFO L168 Benchmark]: TraceAbstraction took 326.98 ms. Allocated memory is still 136.3 MB. Free memory was 105.0 MB in the beginning and 82.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:02:50,076 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 136.3 MB. Free memory is still 82.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:02:50,080 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 92.3 MB. Free memory is still 57.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 202.22 ms. Allocated memory is still 92.3 MB. Free memory was 60.1 MB in the beginning and 66.8 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.10 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 64.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.93 ms. Allocated memory is still 92.3 MB. Free memory was 64.7 MB in the beginning and 62.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 638.94 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 62.9 MB in the beginning and 105.1 MB in the end (delta: -42.2 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 326.98 ms. Allocated memory is still 136.3 MB. Free memory was 105.0 MB in the beginning and 82.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.99 ms. Allocated memory is still 136.3 MB. Free memory is still 82.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L141] double x = 0.0 / 0.0; [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_sqrt(x); [L20] return x != x; [L146] COND TRUE !isnan_double(res) [L147] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 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=23occurred 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 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, ACCELERATED_INTERPOLATION: 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 0.2.0-7b2dab5 [2020-12-09 09:02:51,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:02:51,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:02:51,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:02:51,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:02:51,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:02:51,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:02:51,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:02:51,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:02:51,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:02:51,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:02:51,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:02:51,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:02:51,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:02:51,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:02:51,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:02:51,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:02:51,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:02:51,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:02:51,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:02:51,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:02:51,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:02:51,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:02:51,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:02:51,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:02:51,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:02:51,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:02:51,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:02:51,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:02:51,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:02:51,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:02:51,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:02:51,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:02:51,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:02:51,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:02:51,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:02:51,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:02:51,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:02:51,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:02:51,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:02:51,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:02:51,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 09:02:51,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:02:51,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:02:51,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:02:51,886 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:02:51,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:02:51,886 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:02:51,887 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:02:51,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:02:51,887 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:02:51,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:02:51,887 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:02:51,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:02:51,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:02:51,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:02:51,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:02:51,890 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb6e16aaf6c8a1f1fa397dc12ee5c0d916d97712 [2020-12-09 09:02:52,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:02:52,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:02:52,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:02:52,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:02:52,132 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:02:52,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-12-09 09:02:52,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/0c966d013/86365b0bc3a0442b9a31371c399bebe6/FLAG8ff974ad0 [2020-12-09 09:02:52,580 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:02:52,580 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2020-12-09 09:02:52,586 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/0c966d013/86365b0bc3a0442b9a31371c399bebe6/FLAG8ff974ad0 [2020-12-09 09:02:52,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/data/0c966d013/86365b0bc3a0442b9a31371c399bebe6 [2020-12-09 09:02:52,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:02:52,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:02:52,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:02:52,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:02:52,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:02:52,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a46d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52, skipping insertion in model container [2020-12-09 09:02:52,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:02:52,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:02:52,784 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2020-12-09 09:02:52,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:02:52,799 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:02:52,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2020-12-09 09:02:52,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:02:52,866 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:02:52,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52 WrapperNode [2020-12-09 09:02:52,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:02:52,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:02:52,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:02:52,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:02:52,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:02:52,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:02:52,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:02:52,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:02:52,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... [2020-12-09 09:02:52,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:02:52,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:02:52,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:02:52,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:02:52,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:02:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 09:02:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 09:02:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 09:02:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:02:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 09:02:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:02:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:02:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 09:02:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 09:02:58,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:02:58,475 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 09:02:58,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:58 BoogieIcfgContainer [2020-12-09 09:02:58,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:02:58,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:02:58,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:02:58,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:02:58,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:02:52" (1/3) ... [2020-12-09 09:02:58,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8e46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:02:58, skipping insertion in model container [2020-12-09 09:02:58,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:02:52" (2/3) ... [2020-12-09 09:02:58,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8e46f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:02:58, skipping insertion in model container [2020-12-09 09:02:58,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:58" (3/3) ... [2020-12-09 09:02:58,483 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2020-12-09 09:02:58,493 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:02:58,495 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:02:58,502 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:02:58,519 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:02:58,519 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:02:58,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:02:58,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:02:58,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:02:58,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:02:58,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:02:58,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:02:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2020-12-09 09:02:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 09:02:58,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:02:58,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:02:58,532 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:02:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:02:58,536 INFO L82 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2020-12-09 09:02:58,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:02:58,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883341382] [2020-12-09 09:02:58,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 09:02:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:02:58,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 09:02:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:02:58,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:02:58,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:02:58,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883341382] [2020-12-09 09:02:58,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:02:58,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 09:02:58,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078093713] [2020-12-09 09:02:58,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 09:02:58,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:02:58,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 09:02:58,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 09:02:58,881 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2020-12-09 09:02:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:02:58,897 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2020-12-09 09:02:58,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 09:02:58,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 09:02:58,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:02:58,904 INFO L225 Difference]: With dead ends: 96 [2020-12-09 09:02:58,904 INFO L226 Difference]: Without dead ends: 46 [2020-12-09 09:02:58,906 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 09:02:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-09 09:02:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-09 09:02:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-09 09:02:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2020-12-09 09:02:58,931 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2020-12-09 09:02:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:02:58,931 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2020-12-09 09:02:58,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 09:02:58,931 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2020-12-09 09:02:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 09:02:58,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:02:58,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:02:59,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 09:02:59,134 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:02:59,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:02:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2020-12-09 09:02:59,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:02:59,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124011507] [2020-12-09 09:02:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 09:02:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:02:59,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 09:02:59,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:02:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:02:59,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:02:59,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124011507] [2020-12-09 09:02:59,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:02:59,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:02:59,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125152805] [2020-12-09 09:02:59,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:02:59,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:02:59,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:02:59,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:02:59,674 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand 7 states. [2020-12-09 09:03:04,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:03:04,341 INFO L93 Difference]: Finished difference Result 56 states and 73 transitions. [2020-12-09 09:03:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:03:04,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2020-12-09 09:03:04,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:03:04,343 INFO L225 Difference]: With dead ends: 56 [2020-12-09 09:03:04,343 INFO L226 Difference]: Without dead ends: 51 [2020-12-09 09:03:04,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 09:03:04,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-09 09:03:04,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2020-12-09 09:03:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-09 09:03:04,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 63 transitions. [2020-12-09 09:03:04,349 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 63 transitions. Word has length 9 [2020-12-09 09:03:04,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:03:04,350 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 63 transitions. [2020-12-09 09:03:04,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:03:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2020-12-09 09:03:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 09:03:04,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:03:04,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:03:04,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 09:03:04,552 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:03:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:03:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash 239103152, now seen corresponding path program 1 times [2020-12-09 09:03:04,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:03:04,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834830824] [2020-12-09 09:03:04,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/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 [2020-12-09 09:03:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:03:05,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 09:03:05,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:03:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:03:05,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:03:05,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834830824] [2020-12-09 09:03:05,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:03:05,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 09:03:05,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692645487] [2020-12-09 09:03:05,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 09:03:05,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:03:05,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 09:03:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 09:03:05,557 INFO L87 Difference]: Start difference. First operand 46 states and 63 transitions. Second operand 7 states. [2020-12-09 09:03:09,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:03:09,056 INFO L93 Difference]: Finished difference Result 51 states and 67 transitions. [2020-12-09 09:03:09,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 09:03:09,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 09:03:09,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:03:09,058 INFO L225 Difference]: With dead ends: 51 [2020-12-09 09:03:09,058 INFO L226 Difference]: Without dead ends: 46 [2020-12-09 09:03:09,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 09:03:09,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-12-09 09:03:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-12-09 09:03:09,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-12-09 09:03:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2020-12-09 09:03:09,063 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 12 [2020-12-09 09:03:09,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:03:09,064 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2020-12-09 09:03:09,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 09:03:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2020-12-09 09:03:09,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 09:03:09,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:03:09,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 09:03:09,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 09:03:09,266 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:03:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:03:09,268 INFO L82 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2020-12-09 09:03:09,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:03:09,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152297529] [2020-12-09 09:03:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 09:03:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:03:09,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 09:03:09,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:03:09,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:03:09,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:03:09,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152297529] [2020-12-09 09:03:09,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:03:09,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 09:03:09,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210447830] [2020-12-09 09:03:09,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:03:09,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:03:09,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:03:09,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:03:09,503 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand 4 states. [2020-12-09 09:03:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:03:09,587 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2020-12-09 09:03:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:03:09,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 09:03:09,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:03:09,587 INFO L225 Difference]: With dead ends: 46 [2020-12-09 09:03:09,587 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:03:09,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:03:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:03:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:03:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:03:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:03:09,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-12-09 09:03:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:03:09,589 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:03:09,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:03:09,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:03:09,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:03:09,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 09:03:09,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 09:03:10,062 INFO L265 CegarLoopResult]: At program point L151(lines 134 152) the Hoare annotation is: true [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L258 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L95(lines 95 96) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L258 CegarLoopResult]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L112(lines 112 117) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L63(lines 63 66) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-12-09 09:03:10,063 INFO L262 CegarLoopResult]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L258 CegarLoopResult]: At program point L30-2(lines 30 35) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___ieee754_sqrt_~x))) [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L258 CegarLoopResult]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L113(lines 113 114) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L105(lines 105 119) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L262 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-12-09 09:03:10,064 INFO L258 CegarLoopResult]: At program point L131(lines 24 132) the Hoare annotation is: (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L90(lines 90 99) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L107(lines 107 118) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L41(lines 41 46) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L258 CegarLoopResult]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 09:03:10,065 INFO L258 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L42(lines 42 45) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L258 CegarLoopResult]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L109(lines 109 117) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L76(lines 76 80) no Hoare annotation was computed. [2020-12-09 09:03:10,066 INFO L262 CegarLoopResult]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2020-12-09 09:03:10,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 09:03:10,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 09:03:10,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,078 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,080 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:03:10 BoogieIcfgContainer [2020-12-09 09:03:10,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:03:10,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:03:10,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:03:10,083 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:03:10,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:02:58" (3/4) ... [2020-12-09 09:03:10,085 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:03:10,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 09:03:10,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 09:03:10,093 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:03:10,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:03:10,109 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-12-09 09:03:10,110 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) [2020-12-09 09:03:10,110 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result [2020-12-09 09:03:10,135 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4f7ba91b-bfdc-461e-9d14-cfbea16f40df/bin/utaipan/witness.graphml [2020-12-09 09:03:10,135 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:03:10,136 INFO L168 Benchmark]: Toolchain (without parser) took 17534.24 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 50.6 MB in the beginning and 44.8 MB in the end (delta: 5.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,136 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 69.2 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:03:10,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.32 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 51.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,137 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 49.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,137 INFO L168 Benchmark]: Boogie Preprocessor took 35.60 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,137 INFO L168 Benchmark]: RCFGBuilder took 5538.75 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 47.7 MB in the beginning and 62.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,138 INFO L168 Benchmark]: TraceAbstraction took 11604.16 ms. Allocated memory is still 90.2 MB. Free memory was 62.0 MB in the beginning and 49.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,138 INFO L168 Benchmark]: Witness Printer took 52.08 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 44.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 09:03:10,140 INFO L339 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 69.2 MB. Free memory was 52.2 MB in the beginning and 52.2 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 265.32 ms. Allocated memory is still 69.2 MB. Free memory was 50.4 MB in the beginning and 51.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 69.2 MB. Free memory was 51.6 MB in the beginning and 49.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.60 ms. Allocated memory is still 69.2 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5538.75 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 47.7 MB in the beginning and 62.4 MB in the end (delta: -14.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11604.16 ms. Allocated memory is still 90.2 MB. Free memory was 62.0 MB in the beginning and 49.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 52.08 ms. Allocated memory is still 90.2 MB. Free memory was 49.0 MB in the beginning and 44.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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 - 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 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 147]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,144 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 20]: Loop Invariant [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 09:03:10,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && 1bv32 == \result - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 187 SDtfs, 251 SDslu, 347 SDs, 0 SdLazy, 67 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 15 NumberOfFragments, 69 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 50 ConstructedInterpolants, 3 QuantifiedInterpolants, 3083 SizeOfPredicates, 24 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...