./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG --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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG --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 bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:00:52,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:52,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:52,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:52,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:52,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:52,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:52,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:52,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:52,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:52,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:52,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:52,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:52,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:52,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:52,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:52,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:52,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:52,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:52,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:52,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:52,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:52,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:52,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:52,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:52,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:52,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:52,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:52,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:52,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:52,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:52,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:52,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:52,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:52,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:52,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:52,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:52,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:52,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:52,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:52,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:52,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:00:52,223 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:52,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:52,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:52,230 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:52,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:52,230 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:52,231 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:00:52,231 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:52,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:52,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:00:52,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:00:52,241 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:52,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:00:52,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:00:52,242 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:00:52,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:52,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:52,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:00:52,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:52,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:52,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:52,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:52,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:52,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:52,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:52,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:52,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:52,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:52,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:52,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:52,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:52,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:52,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:52,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:52,250 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:00:52,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:00:52,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:52,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:52,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:52,251 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_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2021-10-29 05:00:52,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:52,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:52,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:52,615 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:52,617 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:52,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2021-10-29 05:00:52,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/16ad10b5d/249f60be5c1d486f991727bf304dca7b/FLAGa49765fa5 [2021-10-29 05:00:53,222 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:53,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2021-10-29 05:00:53,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/16ad10b5d/249f60be5c1d486f991727bf304dca7b/FLAGa49765fa5 [2021-10-29 05:00:53,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/16ad10b5d/249f60be5c1d486f991727bf304dca7b [2021-10-29 05:00:53,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:53,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:53,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:53,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:53,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:53,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:53,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ddbc904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53, skipping insertion in model container [2021-10-29 05:00:53,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:53,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:53,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:53,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2021-10-29 05:00:53,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:53,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:00:54,043 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2021-10-29 05:00:54,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:54,064 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:00:54,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54 WrapperNode [2021-10-29 05:00:54,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:54,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:54,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:00:54,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:00:54,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:54,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:00:54,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:00:54,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:00:54,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:00:54,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:00:54,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:00:54,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:00:54,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (1/1) ... [2021-10-29 05:00:54,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:54,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:00:54,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:00:54,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:00:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:00:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:00:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:00:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:00:54,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:00:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:00:54,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:00:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:00:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:00:55,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:00:55,015 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-29 05:00:55,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55 BoogieIcfgContainer [2021-10-29 05:00:55,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:00:55,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:00:55,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:00:55,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:00:55,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:00:53" (1/3) ... [2021-10-29 05:00:55,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8293cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:55, skipping insertion in model container [2021-10-29 05:00:55,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:54" (2/3) ... [2021-10-29 05:00:55,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a8293cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:55, skipping insertion in model container [2021-10-29 05:00:55,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55" (3/3) ... [2021-10-29 05:00:55,034 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2021-10-29 05:00:55,040 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:00:55,040 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:00:55,099 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:00:55,107 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:00:55,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:00:55,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 37 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:00:55,151 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,152 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:55,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1729686281, now seen corresponding path program 1 times [2021-10-29 05:00:55,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:00:55,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815255184] [2021-10-29 05:00:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:55,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:00:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:55,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:00:55,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815255184] [2021-10-29 05:00:55,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815255184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:55,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:55,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:00:55,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773733293] [2021-10-29 05:00:55,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:00:55,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:00:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:00:55,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:00:55,513 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 37 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:55,570 INFO L93 Difference]: Finished difference Result 75 states and 123 transitions. [2021-10-29 05:00:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:55,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:00:55,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:55,582 INFO L225 Difference]: With dead ends: 75 [2021-10-29 05:00:55,582 INFO L226 Difference]: Without dead ends: 35 [2021-10-29 05:00:55,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:00:55,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-29 05:00:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-29 05:00:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-10-29 05:00:55,619 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 10 [2021-10-29 05:00:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:55,619 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-29 05:00:55,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,620 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-10-29 05:00:55,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:00:55,621 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,621 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:55,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:00:55,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:55,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:55,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2023312851, now seen corresponding path program 1 times [2021-10-29 05:00:55,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:00:55,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764711400] [2021-10-29 05:00:55,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:55,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:00:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:55,721 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:00:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:55,821 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:00:55,822 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:00:55,824 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:00:55,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:00:55,830 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:00:55,833 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:00:55,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:00:55 BoogieIcfgContainer [2021-10-29 05:00:55,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:00:55,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:00:55,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:00:55,903 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:00:55,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55" (3/4) ... [2021-10-29 05:00:55,909 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:00:55,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:00:55,915 INFO L168 Benchmark]: Toolchain (without parser) took 2356.08 ms. Allocated memory is still 148.9 MB. Free memory was 110.9 MB in the beginning and 61.5 MB in the end (delta: 49.3 MB). Peak memory consumption was 47.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,916 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:55,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 507.39 ms. Allocated memory is still 148.9 MB. Free memory was 110.6 MB in the beginning and 120.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.52 ms. Allocated memory is still 148.9 MB. Free memory was 119.6 MB in the beginning and 117.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,919 INFO L168 Benchmark]: Boogie Preprocessor took 73.74 ms. Allocated memory is still 148.9 MB. Free memory was 117.6 MB in the beginning and 115.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,920 INFO L168 Benchmark]: RCFGBuilder took 800.71 ms. Allocated memory is still 148.9 MB. Free memory was 115.5 MB in the beginning and 93.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,922 INFO L168 Benchmark]: TraceAbstraction took 880.39 ms. Allocated memory is still 148.9 MB. Free memory was 92.4 MB in the beginning and 61.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:55,923 INFO L168 Benchmark]: Witness Printer took 8.01 ms. Allocated memory is still 148.9 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:55,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 148.9 MB. Free memory is still 127.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 507.39 ms. Allocated memory is still 148.9 MB. Free memory was 110.6 MB in the beginning and 120.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.52 ms. Allocated memory is still 148.9 MB. Free memory was 119.6 MB in the beginning and 117.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.74 ms. Allocated memory is still 148.9 MB. Free memory was 117.6 MB in the beginning and 115.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 800.71 ms. Allocated memory is still 148.9 MB. Free memory was 115.5 MB in the beginning and 93.0 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 880.39 ms. Allocated memory is still 148.9 MB. Free memory was 92.4 MB in the beginning and 61.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 8.01 ms. Allocated memory is still 148.9 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 190]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] 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; [L30] static const double zero = 0.0; [L113-L116] 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; [L118] static const double zero_log10 = 0.0; [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; 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] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __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] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] 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] [L133] COND FALSE !(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] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L186] double res = __ieee754_log10(x); [L163] return x != x; [L189] COND TRUE !isnan_double(res) [L190] 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 41 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-10-29 05:00:55,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:00:58,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:58,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:58,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:58,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:58,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:58,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:58,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:58,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:58,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:58,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:58,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:58,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:58,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:58,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:58,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:58,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:58,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:58,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:58,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:58,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:58,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:58,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:58,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:58,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:58,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:58,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:58,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:58,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:58,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:58,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:58,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:58,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:58,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:58,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:58,954 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:58,955 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:58,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:58,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:58,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:58,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:58,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:00:59,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:59,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:59,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:59,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:59,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:59,012 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:59,013 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:59,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:59,013 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:59,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:59,014 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:59,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:59,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:59,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:59,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:59,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:59,016 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:59,017 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:00:59,017 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:00:59,017 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:59,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:59,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:59,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:59,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:59,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:00:59,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:59,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:59,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:59,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:59,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:59,020 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:00:59,021 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:00:59,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:59,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:59,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:59,022 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_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfed7fd71f730b55d3806beef3ca32fd0a7855d8ce409d1c47ac24ae5abb4105 [2021-10-29 05:00:59,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:59,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:59,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:59,416 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:59,419 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:59,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2021-10-29 05:00:59,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/8a6afbf19/5d3791a87f834d7dbd2d99271428d659/FLAG5c91a567f [2021-10-29 05:01:00,065 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:01:00,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2021-10-29 05:01:00,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/8a6afbf19/5d3791a87f834d7dbd2d99271428d659/FLAG5c91a567f [2021-10-29 05:01:00,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/data/8a6afbf19/5d3791a87f834d7dbd2d99271428d659 [2021-10-29 05:01:00,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:01:00,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:01:00,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:00,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:01:00,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:01:00,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:00" (1/1) ... [2021-10-29 05:01:00,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218daf98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:00, skipping insertion in model container [2021-10-29 05:01:00,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:00" (1/1) ... [2021-10-29 05:01:00,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:01:00,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:01:00,829 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2021-10-29 05:01:00,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:00,875 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:01:01,001 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c[4903,4916] [2021-10-29 05:01:01,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:01,045 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:01:01,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01 WrapperNode [2021-10-29 05:01:01,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:01,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:01,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:01:01,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:01:01,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:01,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:01:01,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:01:01,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:01:01,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:01:01,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:01:01,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:01:01,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:01:01,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:01:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:01,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:01:01,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:01:01,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:01:01,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:01:01,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:01:31,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:01:31,414 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-29 05:01:31,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:31 BoogieIcfgContainer [2021-10-29 05:01:31,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:01:31,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:01:31,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:01:31,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:01:31,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:01:00" (1/3) ... [2021-10-29 05:01:31,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99fb1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:31, skipping insertion in model container [2021-10-29 05:01:31,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (2/3) ... [2021-10-29 05:01:31,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99fb1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:31, skipping insertion in model container [2021-10-29 05:01:31,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:31" (3/3) ... [2021-10-29 05:01:31,428 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2021-10-29 05:01:31,435 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:01:31,435 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:01:31,489 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:01:31,496 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:01:31,496 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:01:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:31,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:01:31,520 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:31,521 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:31,521 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2021-10-29 05:01:31,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:31,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1007620246] [2021-10-29 05:01:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:31,545 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:31,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:31,558 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:31,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:01:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:31,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:01:31,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:31,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:32,163 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:32,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1007620246] [2021-10-29 05:01:32,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1007620246] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:32,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:32,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:01:32,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167589962] [2021-10-29 05:01:32,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:01:32,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:01:32,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:32,193 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.702127659574468) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:32,217 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2021-10-29 05:01:32,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:01:32,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:01:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:32,230 INFO L225 Difference]: With dead ends: 95 [2021-10-29 05:01:32,230 INFO L226 Difference]: Without dead ends: 45 [2021-10-29 05:01:32,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:32,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-29 05:01:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-29 05:01:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3636363636363635) internal successors, (60), 44 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2021-10-29 05:01:32,277 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2021-10-29 05:01:32,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:32,277 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2021-10-29 05:01:32,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:32,278 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2021-10-29 05:01:32,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:01:32,279 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:32,279 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:32,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:32,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:32,496 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:32,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:32,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2021-10-29 05:01:32,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:32,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467350390] [2021-10-29 05:01:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:32,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:32,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:32,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:32,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:01:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:32,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:01:32,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:33,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:33,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:33,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:33,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467350390] [2021-10-29 05:01:33,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467350390] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:33,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:33,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:01:33,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075532857] [2021-10-29 05:01:33,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:01:33,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:33,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:01:33,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:01:33,339 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:33,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:33,466 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2021-10-29 05:01:33,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:01:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 05:01:33,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:33,468 INFO L225 Difference]: With dead ends: 83 [2021-10-29 05:01:33,469 INFO L226 Difference]: Without dead ends: 45 [2021-10-29 05:01:33,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:01:33,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-29 05:01:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-29 05:01:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:33,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2021-10-29 05:01:33,478 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2021-10-29 05:01:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:33,479 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2021-10-29 05:01:33,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:33,479 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2021-10-29 05:01:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:01:33,480 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:33,480 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:33,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:33,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:33,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:33,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:33,685 INFO L85 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2021-10-29 05:01:33,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:33,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60671757] [2021-10-29 05:01:33,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:33,686 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:33,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:33,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:33,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:01:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:33,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 05:01:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:35,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:35,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:37,773 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:37,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60671757] [2021-10-29 05:01:37,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60671757] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:37,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:37,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:01:37,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218203379] [2021-10-29 05:01:37,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:01:37,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:37,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:01:37,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:01:37,778 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:44,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:44,976 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2021-10-29 05:01:45,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:01:45,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 05:01:45,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:45,005 INFO L225 Difference]: With dead ends: 50 [2021-10-29 05:01:45,005 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 05:01:45,006 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:01:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 05:01:45,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-29 05:01:45,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-10-29 05:01:45,011 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2021-10-29 05:01:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:45,011 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-10-29 05:01:45,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-10-29 05:01:45,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:01:45,013 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:45,013 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:45,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:45,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:45,233 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:45,233 INFO L85 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2021-10-29 05:01:45,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:45,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568791760] [2021-10-29 05:01:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:45,234 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:45,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:45,237 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:45,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:01:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:46,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:01:46,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:47,661 INFO L388 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 31 treesize of output 29 [2021-10-29 05:01:48,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:48,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:49,201 INFO L388 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 32 treesize of output 30 [2021-10-29 05:01:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:51,364 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:51,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568791760] [2021-10-29 05:01:51,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568791760] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:51,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:51,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:01:51,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85204052] [2021-10-29 05:01:51,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:01:51,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:51,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:01:51,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:01:51,368 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:55,469 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-29 05:01:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:01:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-29 05:01:55,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:55,683 INFO L225 Difference]: With dead ends: 24 [2021-10-29 05:01:55,683 INFO L226 Difference]: Without dead ends: 19 [2021-10-29 05:01:55,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:01:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-29 05:01:55,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-29 05:01:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:55,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-10-29 05:01:55,688 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2021-10-29 05:01:55,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:55,689 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-10-29 05:01:55,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:55,690 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-10-29 05:01:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:01:55,690 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:55,691 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:55,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:55,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:55,903 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:55,904 INFO L85 PathProgramCache]: Analyzing trace with hash 473095487, now seen corresponding path program 1 times [2021-10-29 05:01:55,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:55,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5411484] [2021-10-29 05:01:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:55,905 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:55,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:55,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:55,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:01:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:57,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:01:57,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:59,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:59,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:02:07,030 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start___ieee754_log10_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode ULTIMATE.start___ieee754_log10_~x ULTIMATE.start___ieee754_log10_~x) c_~zero_log10~0))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-29 05:02:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:57,842 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:02:57,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5411484] [2021-10-29 05:02:57,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5411484] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:02:57,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:02:57,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-29 05:02:57,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222522846] [2021-10-29 05:02:57,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:02:57,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:02:57,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:02:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2021-10-29 05:02:57,845 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:02,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:02,905 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-29 05:03:02,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:03:02,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 05:03:02,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:02,906 INFO L225 Difference]: With dead ends: 19 [2021-10-29 05:03:02,906 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:03:02,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2021-10-29 05:03:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:03:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:03:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:03:02,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-10-29 05:03:02,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:02,908 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:03:02,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:03:02,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:03:02,912 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:03:02,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:03,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:03,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:03:03,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:03,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:04,091 INFO L853 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start___ieee754_log10_#res| |ULTIMATE.start___ieee754_log10_#res|)) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:03:04,091 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-29 05:03:04,091 INFO L857 garLoopResultBuilder]: For program point L184-2(lines 184 193) no Hoare annotation was computed. [2021-10-29 05:03:04,092 INFO L857 garLoopResultBuilder]: For program point L184-4(lines 184 193) no Hoare annotation was computed. [2021-10-29 05:03:04,092 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2021-10-29 05:03:04,092 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2021-10-29 05:03:04,092 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:03:04,093 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:03:04,093 INFO L857 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2021-10-29 05:03:04,093 INFO L853 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2021-10-29 05:03:04,093 INFO L857 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2021-10-29 05:03:04,094 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2021-10-29 05:03:04,094 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2021-10-29 05:03:04,094 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-10-29 05:03:04,094 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2021-10-29 05:03:04,094 INFO L853 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2021-10-29 05:03:04,095 INFO L857 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2021-10-29 05:03:04,095 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2021-10-29 05:03:04,095 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2021-10-29 05:03:04,095 INFO L860 garLoopResultBuilder]: At program point L195(lines 175 196) the Hoare annotation is: true [2021-10-29 05:03:04,096 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2021-10-29 05:03:04,096 INFO L853 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2021-10-29 05:03:04,096 INFO L857 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2021-10-29 05:03:04,096 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2021-10-29 05:03:04,097 INFO L853 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start___ieee754_log10_#res| |ULTIMATE.start___ieee754_log10_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:03:04,097 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2021-10-29 05:03:04,097 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2021-10-29 05:03:04,097 INFO L853 garLoopResultBuilder]: At program point L172(lines 165 173) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:03:04,098 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2021-10-29 05:03:04,098 INFO L857 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2021-10-29 05:03:04,098 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2021-10-29 05:03:04,098 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:03:04,098 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-10-29 05:03:04,099 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 190) no Hoare annotation was computed. [2021-10-29 05:03:04,099 INFO L857 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2021-10-29 05:03:04,099 INFO L853 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2021-10-29 05:03:04,099 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:03:04,100 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-29 05:03:04,100 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2021-10-29 05:03:04,100 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2021-10-29 05:03:04,100 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-10-29 05:03:04,100 INFO L857 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-10-29 05:03:04,101 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10_~x ((_ to_fp 11 53) currentRoundingMode (_ bv0 32))))) [2021-10-29 05:03:04,101 INFO L857 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-10-29 05:03:04,101 INFO L853 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2021-10-29 05:03:04,101 INFO L857 garLoopResultBuilder]: For program point L167-1(lines 167 171) no Hoare annotation was computed. [2021-10-29 05:03:04,102 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2021-10-29 05:03:04,102 INFO L853 garLoopResultBuilder]: At program point L167-2(lines 167 171) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short19| (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:03:04,102 INFO L857 garLoopResultBuilder]: For program point L167-3(lines 167 171) no Hoare annotation was computed. [2021-10-29 05:03:04,105 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-10-29 05:03:04,107 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:03:04,118 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,124 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,124 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,125 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,125 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,127 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,127 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,128 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,128 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,130 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,131 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,132 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:03:04 BoogieIcfgContainer [2021-10-29 05:03:04,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:03:04,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:03:04,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:03:04,135 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:03:04,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:31" (3/4) ... [2021-10-29 05:03:04,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:03:04,156 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-29 05:03:04,157 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-29 05:03:04,158 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:03:04,159 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:03:04,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:03:04,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_double(x)-aux && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:03:04,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-10-29 05:03:04,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(\result, \result) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:03:04,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:03:04,250 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:03:04,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:03:04,252 INFO L168 Benchmark]: Toolchain (without parser) took 123812.95 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 41.8 MB in the beginning and 46.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,253 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 62.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:04,253 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.91 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 42.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.07 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 40.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,254 INFO L168 Benchmark]: Boogie Preprocessor took 89.27 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 38.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,255 INFO L168 Benchmark]: RCFGBuilder took 30196.22 ms. Allocated memory is still 62.9 MB. Free memory was 38.1 MB in the beginning and 36.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,255 INFO L168 Benchmark]: TraceAbstraction took 92714.82 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 35.3 MB in the beginning and 52.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,256 INFO L168 Benchmark]: Witness Printer took 115.46 ms. Allocated memory is still 83.9 MB. Free memory was 52.3 MB in the beginning and 46.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:04,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 62.9 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 604.91 ms. Allocated memory is still 62.9 MB. Free memory was 41.7 MB in the beginning and 42.9 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.07 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 40.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.27 ms. Allocated memory is still 62.9 MB. Free memory was 40.3 MB in the beginning and 38.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 30196.22 ms. Allocated memory is still 62.9 MB. Free memory was 38.1 MB in the beginning and 36.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 92714.82 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 35.3 MB in the beginning and 52.3 MB in the end (delta: -17.0 MB). Peak memory consumption was 3.9 MB. Max. memory is 16.1 GB. * Witness Printer took 115.46 ms. Allocated memory is still 83.9 MB. Free memory was 52.3 MB in the beginning and 46.0 MB in the end (delta: 6.3 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 190]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 92.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 62 SDslu, 198 SDs, 0 SdLazy, 52 SolverSat, 3 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 79 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 70.4s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 144 ConstructedInterpolants, 49 QuantifiedInterpolants, 970 SizeOfPredicates, 27 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant [2021-10-29 05:03:04,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,272 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((!~fp.eq~DOUBLE(\result, \result) && 1bv32 == \result) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 167]: Loop Invariant [2021-10-29 05:03:04,272 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,273 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,273 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 165]: Loop Invariant [2021-10-29 05:03:04,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_double(x)-aux && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2021-10-29 05:03:04,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!~fp.eq~DOUBLE(\result, \result) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 125]: Loop Invariant [2021-10-29 05:03:04,277 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-29 05:03:04,279 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:04,279 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~DOUBLE(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) RESULT: Ultimate proved your program to be correct! [2021-10-29 05:03:04,507 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:03:04,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_919542e2-deb7-4bb5-8ea6-65230fa86d5e/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...