./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 411418f84906bedc11fcfc3b7bde3a728b9fa839 ....................................................................................................................................................................................................................................................................................................................................... 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 411418f84906bedc11fcfc3b7bde3a728b9fa839 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:19:06,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:19:06,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:19:06,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:19:06,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:19:06,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:19:06,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:19:06,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:19:06,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:19:06,196 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:19:06,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:19:06,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:19:06,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:19:06,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:19:06,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:19:06,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:19:06,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:19:06,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:19:06,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:19:06,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:19:06,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:19:06,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:19:06,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:19:06,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:19:06,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:19:06,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:19:06,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:19:06,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:19:06,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:19:06,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:19:06,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:19:06,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:19:06,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:19:06,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:19:06,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:19:06,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:19:06,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:19:06,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:19:06,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:19:06,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:19:06,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:19:06,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:19:06,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:19:06,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:19:06,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:19:06,244 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:19:06,245 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:19:06,245 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:19:06,246 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:19:06,246 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:19:06,246 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:19:06,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:19:06,246 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:19:06,247 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:19:06,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:19:06,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:19:06,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:19:06,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:19:06,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:19:06,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:19:06,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:19:06,249 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:19:06,249 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-12-09 07:19:06,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:19:06,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:19:06,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:19:06,440 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:19:06,441 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:19:06,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-09 07:19:06,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/e1dd3f14a/dd1d5ed35d1246d88f06a8c19fc5b76e/FLAG0b0e668af [2020-12-09 07:19:06,876 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:19:06,876 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-09 07:19:06,882 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/e1dd3f14a/dd1d5ed35d1246d88f06a8c19fc5b76e/FLAG0b0e668af [2020-12-09 07:19:06,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/e1dd3f14a/dd1d5ed35d1246d88f06a8c19fc5b76e [2020-12-09 07:19:06,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:19:06,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:19:06,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:06,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:19:06,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:19:06,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:06" (1/1) ... [2020-12-09 07:19:06,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7816cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:06, skipping insertion in model container [2020-12-09 07:19:06,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:06" (1/1) ... [2020-12-09 07:19:06,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:19:06,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:19:07,068 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-09 07:19:07,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:07,080 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:19:07,121 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-09 07:19:07,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:07,136 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:19:07,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07 WrapperNode [2020-12-09 07:19:07,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:07,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:07,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:19:07,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:19:07,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:07,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:19:07,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:19:07,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:19:07,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... [2020-12-09 07:19:07,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:19:07,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:19:07,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:19:07,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:19:07,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:19:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:19:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:19:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 07:19:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 07:19:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 07:19:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:19:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:19:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 07:19:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:19:07,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:19:07,690 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 07:19:07,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:07 BoogieIcfgContainer [2020-12-09 07:19:07,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:19:07,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:19:07,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:19:07,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:19:07,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:19:06" (1/3) ... [2020-12-09 07:19:07,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae27fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:07, skipping insertion in model container [2020-12-09 07:19:07,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:07" (2/3) ... [2020-12-09 07:19:07,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae27fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:07, skipping insertion in model container [2020-12-09 07:19:07,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:07" (3/3) ... [2020-12-09 07:19:07,701 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-12-09 07:19:07,712 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:19:07,715 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:19:07,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:19:07,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:19:07,739 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:19:07,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:19:07,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:19:07,740 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:19:07,740 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:19:07,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:19:07,740 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:19:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-12-09 07:19:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 07:19:07,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:07,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:07,753 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:07,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:07,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1794980911, now seen corresponding path program 1 times [2020-12-09 07:19:07,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:19:07,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944213070] [2020-12-09 07:19:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:19:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:19:07,888 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 07:19:07,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944213070] [2020-12-09 07:19:07,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:19:07,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:19:07,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824934209] [2020-12-09 07:19:07,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:19:07,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:19:07,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:19:07,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:19:07,905 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-12-09 07:19:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:19:07,919 INFO L93 Difference]: Finished difference Result 69 states and 113 transitions. [2020-12-09 07:19:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:19:07,920 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 07:19:07,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:19:07,928 INFO L225 Difference]: With dead ends: 69 [2020-12-09 07:19:07,928 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 07:19:07,930 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 07:19:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 07:19:07,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-09 07:19:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 07:19:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2020-12-09 07:19:07,956 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 10 [2020-12-09 07:19:07,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:19:07,956 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2020-12-09 07:19:07,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:19:07,957 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2020-12-09 07:19:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:19:07,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:07,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:07,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:19:07,958 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:07,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:07,958 INFO L82 PathProgramCache]: Analyzing trace with hash -81492276, now seen corresponding path program 1 times [2020-12-09 07:19:07,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:19:07,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616242407] [2020-12-09 07:19:07,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:19:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:19:08,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:19:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:19:08,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:19:08,093 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:19:08,093 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:19:08,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 07:19:08,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:19:08 BoogieIcfgContainer [2020-12-09 07:19:08,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:19:08,121 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:19:08,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:19:08,121 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:19:08,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:07" (3/4) ... [2020-12-09 07:19:08,123 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 07:19:08,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:19:08,125 INFO L168 Benchmark]: Toolchain (without parser) took 1229.84 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 94.7 MB in the beginning and 87.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,126 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 119.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:19:08,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.55 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 92.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.18 ms. Allocated memory is still 119.5 MB. Free memory was 92.1 MB in the beginning and 89.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,127 INFO L168 Benchmark]: Boogie Preprocessor took 36.40 ms. Allocated memory is still 119.5 MB. Free memory was 89.7 MB in the beginning and 87.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,128 INFO L168 Benchmark]: RCFGBuilder took 474.87 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 87.6 MB in the beginning and 117.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,128 INFO L168 Benchmark]: TraceAbstraction took 426.11 ms. Allocated memory is still 146.8 MB. Free memory was 116.3 MB in the beginning and 87.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:08,129 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 146.8 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:19:08,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 119.5 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.55 ms. Allocated memory is still 119.5 MB. Free memory was 94.7 MB in the beginning and 92.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.18 ms. Allocated memory is still 119.5 MB. Free memory was 92.1 MB in the beginning and 89.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.40 ms. Allocated memory is still 119.5 MB. Free memory was 89.7 MB in the beginning and 87.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 474.87 ms. Allocated memory was 119.5 MB in the beginning and 146.8 MB in the end (delta: 27.3 MB). Free memory was 87.6 MB in the beginning and 117.1 MB in the end (delta: -29.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 426.11 ms. Allocated memory is still 146.8 MB. Free memory was 116.3 MB in the beginning and 87.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Witness Printer took 2.94 ms. Allocated memory is still 146.8 MB. Free memory is still 87.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 183, overapproximation of someBinaryArithmeticDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L187] COND TRUE !isinf_double(res) [L188] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 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=35occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 07:19:09,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:19:09,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:19:09,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:19:09,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:19:09,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:19:09,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:19:09,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:19:09,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:19:09,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:19:09,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:19:09,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:19:09,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:19:09,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:19:09,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:19:09,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:19:09,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:19:09,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:19:09,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:19:09,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:19:09,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:19:09,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:19:09,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:19:09,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:19:09,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:19:09,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:19:09,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:19:09,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:19:09,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:19:09,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:19:09,703 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:19:09,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:19:09,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:19:09,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:19:09,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:19:09,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:19:09,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:19:09,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:19:09,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:19:09,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:19:09,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:19:09,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:19:09,724 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:19:09,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:19:09,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:19:09,725 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:19:09,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:19:09,725 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:19:09,726 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:19:09,726 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:19:09,726 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:19:09,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:19:09,726 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:19:09,727 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:19:09,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:19:09,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:19:09,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:19:09,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:19:09,733 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:19:09,733 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:19:09,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:19:09,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:19:09,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:19:09,734 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-12-09 07:19:09,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:19:09,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:19:09,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:19:09,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:19:09,993 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:19:09,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-09 07:19:10,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/925cf6c12/aeb6190d2e5645b4b23e50c8644a676e/FLAG90e8b7cb8 [2020-12-09 07:19:10,378 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:19:10,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-12-09 07:19:10,386 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/925cf6c12/aeb6190d2e5645b4b23e50c8644a676e/FLAG90e8b7cb8 [2020-12-09 07:19:10,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/data/925cf6c12/aeb6190d2e5645b4b23e50c8644a676e [2020-12-09 07:19:10,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:19:10,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:19:10,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:10,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:19:10,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:19:10,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:10" (1/1) ... [2020-12-09 07:19:10,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58efe70c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:10, skipping insertion in model container [2020-12-09 07:19:10,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:10" (1/1) ... [2020-12-09 07:19:10,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:19:10,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:19:10,954 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-09 07:19:10,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:10,975 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:19:11,022 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_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c[4845,4858] [2020-12-09 07:19:11,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:11,037 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:19:11,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11 WrapperNode [2020-12-09 07:19:11,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:11,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:11,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:19:11,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:19:11,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:11,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:19:11,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:19:11,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:19:11,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... [2020-12-09 07:19:11,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:19:11,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:19:11,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:19:11,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:19:11,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:19:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 07:19:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:19:11,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 07:19:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:19:45,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:19:45,546 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 07:19:45,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:45 BoogieIcfgContainer [2020-12-09 07:19:45,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:19:45,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:19:45,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:19:45,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:19:45,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:19:10" (1/3) ... [2020-12-09 07:19:45,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a8b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:45, skipping insertion in model container [2020-12-09 07:19:45,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:11" (2/3) ... [2020-12-09 07:19:45,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610a8b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:45, skipping insertion in model container [2020-12-09 07:19:45,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:45" (3/3) ... [2020-12-09 07:19:45,555 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-12-09 07:19:45,566 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:19:45,569 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:19:45,582 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:19:45,599 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:19:45,599 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:19:45,599 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:19:45,599 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:19:45,599 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:19:45,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:19:45,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:19:45,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:19:45,608 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-09 07:19:45,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:19:45,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:45,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:45,612 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-12-09 07:19:45,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:19:45,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631533782] [2020-12-09 07:19:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:19:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:19:46,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 07:19:46,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:19:46,426 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 07:19:46,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:19:46,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631533782] [2020-12-09 07:19:46,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:19:46,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:19:46,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679654242] [2020-12-09 07:19:46,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:19:46,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:19:46,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:19:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:19:46,439 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-09 07:19:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:19:46,452 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-12-09 07:19:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:19:46,453 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-09 07:19:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:19:46,459 INFO L225 Difference]: With dead ends: 88 [2020-12-09 07:19:46,459 INFO L226 Difference]: Without dead ends: 42 [2020-12-09 07:19:46,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 07:19:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-09 07:19:46,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-09 07:19:46,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-09 07:19:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-12-09 07:19:46,483 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-12-09 07:19:46,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:19:46,484 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-12-09 07:19:46,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:19:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-12-09 07:19:46,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 07:19:46,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:46,484 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:46,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:19:46,685 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:46,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:46,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-12-09 07:19:46,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:19:46,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88302614] [2020-12-09 07:19:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:19:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:19:47,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 07:19:47,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:19:48,067 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 07:19:48,103 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 07:19:48,130 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 07:19:48,131 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 07:19:48,269 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 07:19:48,270 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 07:19:48,273 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 07:19:48,274 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2020-12-09 07:19:49,065 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 07:19:49,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:19:49,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88302614] [2020-12-09 07:19:49,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:19:49,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 07:19:49,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994018719] [2020-12-09 07:19:49,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 07:19:49,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:19:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 07:19:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-09 07:19:49,069 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 8 states. [2020-12-09 07:19:52,566 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 07:19:54,280 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 07:19:59,668 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 07:20:00,159 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-09 07:20:01,293 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-09 07:20:35,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:20:35,102 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2020-12-09 07:20:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 07:20:35,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-12-09 07:20:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:20:35,111 INFO L225 Difference]: With dead ends: 76 [2020-12-09 07:20:35,111 INFO L226 Difference]: Without dead ends: 68 [2020-12-09 07:20:35,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-09 07:20:35,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-09 07:20:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 42. [2020-12-09 07:20:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-09 07:20:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 55 transitions. [2020-12-09 07:20:35,118 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 55 transitions. Word has length 14 [2020-12-09 07:20:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:20:35,118 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 55 transitions. [2020-12-09 07:20:35,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 07:20:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2020-12-09 07:20:35,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 07:20:35,119 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:20:35,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:20:35,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:20:35,321 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:20:35,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:20:35,322 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2020-12-09 07:20:35,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:20:35,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489262160] [2020-12-09 07:20:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:20:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:20:35,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 07:20:35,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:20:35,707 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 07:20:35,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:20:35,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489262160] [2020-12-09 07:20:35,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:20:35,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 07:20:35,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605410922] [2020-12-09 07:20:35,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:20:35,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:20:35,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:20:35,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 07:20:35,709 INFO L87 Difference]: Start difference. First operand 42 states and 55 transitions. Second operand 4 states. [2020-12-09 07:20:35,914 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 07:20:38,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:20:38,833 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-12-09 07:20:38,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 07:20:38,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 07:20:38,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:20:38,859 INFO L225 Difference]: With dead ends: 50 [2020-12-09 07:20:38,859 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 07:20:38,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:20:38,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 07:20:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 07:20:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 07:20:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-09 07:20:38,862 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-12-09 07:20:38,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:20:38,862 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-09 07:20:38,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:20:38,862 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-09 07:20:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 07:20:38,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:20:38,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:20:39,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 07:20:39,064 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:20:39,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:20:39,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1233905145, now seen corresponding path program 1 times [2020-12-09 07:20:39,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:20:39,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1903887704] [2020-12-09 07:20:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/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 07:20:39,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:20:40,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 07:20:40,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:20:40,157 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 07:20:40,198 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 07:20:40,240 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 07:20:40,241 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 07:20:40,412 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 07:20:40,412 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 07:20:40,414 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 07:20:40,415 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-12-09 07:20:40,569 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 07:20:40,569 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:20:40,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1903887704] [2020-12-09 07:20:40,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:20:40,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 07:20:40,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272732800] [2020-12-09 07:20:40,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:20:40,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:20:40,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:20:40,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 07:20:40,571 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-12-09 07:20:40,775 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 07:20:40,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:20:40,799 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-09 07:20:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 07:20:40,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-09 07:20:40,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:20:40,801 INFO L225 Difference]: With dead ends: 16 [2020-12-09 07:20:40,801 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:20:40,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:20:40,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:20:40,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:20:40,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:20:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:20:40,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-09 07:20:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:20:40,802 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:20:40,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:20:40,803 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:20:40,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:20:41,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 07:20:41,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:20:41,322 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-09 07:20:41,490 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 07:20:41,775 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 07:20:42,030 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 07:20:42,033 INFO L265 CegarLoopResult]: At program point L192(lines 177 193) the Hoare annotation is: true [2020-12-09 07:20:42,033 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-09 07:20:42,033 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-09 07:20:42,033 INFO L262 CegarLoopResult]: For program point L151(lines 151 152) no Hoare annotation was computed. [2020-12-09 07:20:42,033 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-09 07:20:42,033 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2020-12-09 07:20:42,033 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-09 07:20:42,034 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L187(lines 187 190) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (= ~zero_log10~0 (_ +zero 11 53)) (= ~two54_log10~0 ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_#res|))) [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2020-12-09 07:20:42,035 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-09 07:20:42,036 INFO L258 CegarLoopResult]: At program point L31(lines 20 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (= ~zero_log10~0 (_ +zero 11 53)) (= ~two54_log10~0 ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_#res|)) (exists ((|v_skolemized_q#valueAsBitvector_15| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_15|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_15|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_15|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_15|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))))) [2020-12-09 07:20:42,036 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 07:20:42,036 INFO L262 CegarLoopResult]: For program point L155-1(lines 155 159) no Hoare annotation was computed. [2020-12-09 07:20:42,036 INFO L258 CegarLoopResult]: At program point L155-2(lines 155 159) the Hoare annotation is: false [2020-12-09 07:20:42,036 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:20:42,036 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L148(lines 148 160) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L148-1(lines 135 175) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L140-1(lines 140 145) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L258 CegarLoopResult]: At program point L140-2(lines 140 145) the Hoare annotation is: (and (= ~zero_log10~0 (_ +zero 11 53)) (= ~two54_log10~0 ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start___ieee754_log10_~x)) [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L140-3(lines 140 145) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:20:42,037 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: false [2020-12-09 07:20:42,037 INFO L262 CegarLoopResult]: For program point L149(lines 149 150) no Hoare annotation was computed. [2020-12-09 07:20:42,038 INFO L258 CegarLoopResult]: At program point L174(lines 135 175) the Hoare annotation is: (and (= ~zero_log10~0 (_ +zero 11 53)) (= ~two54_log10~0 ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_#res|))) [2020-12-09 07:20:42,038 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-09 07:20:42,038 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-09 07:20:42,038 INFO L262 CegarLoopResult]: For program point L167-1(lines 167 172) no Hoare annotation was computed. [2020-12-09 07:20:42,038 INFO L258 CegarLoopResult]: At program point L167-2(lines 167 172) the Hoare annotation is: false [2020-12-09 07:20:42,038 INFO L262 CegarLoopResult]: For program point L167-3(lines 167 172) no Hoare annotation was computed. [2020-12-09 07:20:42,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,047 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,055 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,056 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:20:42 BoogieIcfgContainer [2020-12-09 07:20:42,063 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:20:42,063 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:20:42,063 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:20:42,063 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:20:42,064 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:45" (3/4) ... [2020-12-09 07:20:42,066 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:20:42,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-09 07:20:42,076 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 07:20:42,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:20:42,077 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:20:42,095 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (zero_log10 == ~Pluszero~LONGDOUBLE() && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) [2020-12-09 07:20:42,095 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && zero_log10 == ~Pluszero~LONGDOUBLE()) && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) [2020-12-09 07:20:42,096 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && zero_log10 == ~Pluszero~LONGDOUBLE()) && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_15 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) [2020-12-09 07:20:42,125 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0827deb6-ca9a-4ae4-ac0c-24608f264d3f/bin/utaipan/witness.graphml [2020-12-09 07:20:42,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:20:42,126 INFO L168 Benchmark]: Toolchain (without parser) took 91350.61 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.4 MB in the beginning and 42.5 MB in the end (delta: -3.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,127 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:20:42,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.75 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 40.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 38.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,128 INFO L168 Benchmark]: Boogie Preprocessor took 30.11 ms. Allocated memory is still 60.8 MB. Free memory was 38.4 MB in the beginning and 36.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,128 INFO L168 Benchmark]: RCFGBuilder took 34443.35 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 36.0 MB in the beginning and 38.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,128 INFO L168 Benchmark]: TraceAbstraction took 56513.24 ms. Allocated memory is still 77.6 MB. Free memory was 38.5 MB in the beginning and 48.7 MB in the end (delta: -10.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,129 INFO L168 Benchmark]: Witness Printer took 62.23 ms. Allocated memory is still 77.6 MB. Free memory was 48.3 MB in the beginning and 42.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 07:20:42,131 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 60.8 MB. Free memory was 43.1 MB in the beginning and 43.0 MB in the end (delta: 73.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.75 ms. Allocated memory is still 60.8 MB. Free memory was 39.3 MB in the beginning and 40.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.06 ms. Allocated memory is still 60.8 MB. Free memory was 40.6 MB in the beginning and 38.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.11 ms. Allocated memory is still 60.8 MB. Free memory was 38.4 MB in the beginning and 36.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 34443.35 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 36.0 MB in the beginning and 38.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 56513.24 ms. Allocated memory is still 77.6 MB. Free memory was 38.5 MB in the beginning and 48.7 MB in the end (delta: -10.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 62.23 ms. Allocated memory is still 77.6 MB. Free memory was 48.3 MB in the beginning and 42.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 188]: 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: 20]: Loop Invariant [2020-12-09 07:20:42,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,141 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_15,QUANTIFIED] [2020-12-09 07:20:42,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && zero_log10 == ~Pluszero~LONGDOUBLE()) && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_15 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_15[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_15[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_15[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_15[63:63], v_skolemized_q#valueAsBitvector_15[62:52], v_skolemized_q#valueAsBitvector_15[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: (zero_log10 == ~Pluszero~LONGDOUBLE() && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant [2020-12-09 07:20:42,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,144 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (zero_log10 == ~Pluszero~LONGDOUBLE() && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-12-09 07:20:42,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 07:20:42,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && zero_log10 == ~Pluszero~LONGDOUBLE()) && two54_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 55.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 49.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 52 SDslu, 237 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 44.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 26 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 155 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 13 QuantifiedInterpolants, 5349 SizeOfPredicates, 22 NumberOfNonLiveVariables, 275 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...