./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba --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 b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:41:57,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:41:57,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:41:57,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:41:57,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:41:57,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:41:57,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:41:57,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:41:57,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:41:57,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:41:57,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:41:57,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:41:57,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:41:57,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:41:57,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:41:57,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:41:57,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:41:57,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:41:57,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:41:57,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:41:57,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:41:57,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:41:57,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:41:57,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:41:57,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:41:57,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:41:57,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:41:57,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:41:57,243 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:41:57,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:41:57,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:41:57,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:41:57,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:41:57,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:41:57,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:41:57,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:41:57,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:41:57,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:41:57,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:41:57,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:41:57,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:41:57,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:41:57,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:41:57,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:41:57,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:41:57,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:41:57,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:41:57,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:41:57,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:41:57,333 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:41:57,333 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:41:57,333 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:41:57,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:41:57,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:41:57,335 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:41:57,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:41:57,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:41:57,336 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:41:57,336 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:41:57,336 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:41:57,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:41:57,337 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:41:57,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:41:57,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:41:57,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:41:57,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:41:57,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:41:57,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:41:57,340 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:41:57,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:41:57,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:41:57,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:41:57,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:41:57,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:41:57,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:41:57,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:41:57,342 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:41:57,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:41:57,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:41:57,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:41:57,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:41:57,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:41:57,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:41:57,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e [2022-11-22 02:41:57,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:41:57,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:41:57,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:41:57,720 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:41:57,720 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:41:57,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2022-11-22 02:42:01,306 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:42:01,686 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:42:01,686 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2022-11-22 02:42:01,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/65921cf2e/b49f1693652e4bd69ac4e3d27ce81e81/FLAGca44ec708 [2022-11-22 02:42:01,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/65921cf2e/b49f1693652e4bd69ac4e3d27ce81e81 [2022-11-22 02:42:01,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:42:01,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:42:01,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:01,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:42:01,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:42:01,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:01" (1/1) ... [2022-11-22 02:42:01,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449b428e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:01, skipping insertion in model container [2022-11-22 02:42:01,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:01" (1/1) ... [2022-11-22 02:42:01,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:42:01,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:42:02,057 WARN L237 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_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2022-11-22 02:42:02,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:02,083 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:42:02,121 WARN L237 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_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2022-11-22 02:42:02,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:02,146 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:42:02,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02 WrapperNode [2022-11-22 02:42:02,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:02,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:02,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:42:02,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:42:02,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,195 INFO L138 Inliner]: procedures = 17, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-11-22 02:42:02,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:02,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:42:02,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:42:02,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:42:02,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:42:02,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:42:02,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:42:02,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:42:02,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (1/1) ... [2022-11-22 02:42:02,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:42:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:02,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:42:02,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:42:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:42:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:42:02,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:42:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-22 02:42:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:42:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:42:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:42:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:42:02,449 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:42:02,452 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:42:02,668 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:42:02,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:42:02,708 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:42:02,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:02 BoogieIcfgContainer [2022-11-22 02:42:02,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:42:02,714 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:42:02,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:42:02,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:42:02,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:42:01" (1/3) ... [2022-11-22 02:42:02,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4c744f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:02, skipping insertion in model container [2022-11-22 02:42:02,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:02" (2/3) ... [2022-11-22 02:42:02,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d4c744f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:02, skipping insertion in model container [2022-11-22 02:42:02,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:02" (3/3) ... [2022-11-22 02:42:02,737 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2022-11-22 02:42:02,786 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:42:02,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:42:02,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:42:02,869 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66e71c72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:42:02,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:42:02,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-22 02:42:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 02:42:02,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:02,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 02:42:02,885 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:42:02,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:02,892 INFO L85 PathProgramCache]: Analyzing trace with hash 48211, now seen corresponding path program 1 times [2022-11-22 02:42:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:02,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969434605] [2022-11-22 02:42:02,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:02,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:42:03,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:42:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:42:03,105 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:42:03,107 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:42:03,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:42:03,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:42:03,117 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:42:03,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:42:03,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:42:03 BoogieIcfgContainer [2022-11-22 02:42:03,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:42:03,149 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:42:03,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:42:03,149 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:42:03,150 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:02" (3/4) ... [2022-11-22 02:42:03,154 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:42:03,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:42:03,156 INFO L158 Benchmark]: Toolchain (without parser) took 1418.36ms. Allocated memory is still 203.4MB. Free memory was 171.1MB in the beginning and 132.6MB in the end (delta: 38.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,157 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:03,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.70ms. Allocated memory is still 203.4MB. Free memory was 170.8MB in the beginning and 160.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.03ms. Allocated memory is still 203.4MB. Free memory was 160.3MB in the beginning and 158.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,159 INFO L158 Benchmark]: Boogie Preprocessor took 26.40ms. Allocated memory is still 203.4MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,160 INFO L158 Benchmark]: RCFGBuilder took 486.49ms. Allocated memory is still 203.4MB. Free memory was 157.4MB in the beginning and 147.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,161 INFO L158 Benchmark]: TraceAbstraction took 433.97ms. Allocated memory is still 203.4MB. Free memory was 146.4MB in the beginning and 133.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,161 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 203.4MB. Free memory was 133.1MB in the beginning and 132.6MB in the end (delta: 433.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:03,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 125.8MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.70ms. Allocated memory is still 203.4MB. Free memory was 170.8MB in the beginning and 160.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.03ms. Allocated memory is still 203.4MB. Free memory was 160.3MB in the beginning and 158.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.40ms. Allocated memory is still 203.4MB. Free memory was 158.9MB in the beginning and 157.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.49ms. Allocated memory is still 203.4MB. Free memory was 157.4MB in the beginning and 147.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 433.97ms. Allocated memory is still 203.4MB. Free memory was 146.4MB in the beginning and 133.1MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 203.4MB. Free memory was 133.1MB in the beginning and 132.6MB in the end (delta: 433.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 114]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 111, overapproximation of someUnaryDOUBLEoperation at line 122. Possible FailurePath: [L122] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) [L111] float sum = a + b; [L112] union mix m; [L113] m.f = sum [L114] EXPR m.i VAL [\old(a)=2147483656, \old(b)=762388928, a=2147483656, b=762388928, m={3:0}, m.i=2147483648, sum=2147483657] [L114] COND TRUE !(m.i != 0x80000000) [L114] reach_error() VAL [\old(a)=2147483656, \old(b)=762388928, a=2147483656, b=762388928, m={3:0}, sum=2147483657] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-22 02:42:03,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba --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 b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:42:06,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:42:06,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:42:06,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:42:06,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:42:06,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:42:06,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:42:06,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:42:06,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:42:06,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:42:06,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:42:06,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:42:06,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:42:06,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:42:06,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:42:06,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:42:06,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:42:06,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:42:06,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:42:06,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:42:06,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:42:06,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:42:06,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:42:06,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:42:06,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:42:06,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:42:06,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:42:06,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:42:06,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:42:06,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:42:06,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:42:06,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:42:06,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:42:06,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:42:06,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:42:06,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:42:06,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:42:06,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:42:06,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:42:06,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:42:06,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:42:06,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 02:42:06,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:42:06,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:42:06,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:42:06,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:42:06,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:42:06,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:42:06,258 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:42:06,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:42:06,258 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:42:06,258 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:42:06,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:42:06,259 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:42:06,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:42:06,260 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:42:06,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:42:06,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:42:06,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:42:06,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:42:06,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:42:06,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:42:06,262 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:42:06,262 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:42:06,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:42:06,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:42:06,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:42:06,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:42:06,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:42:06,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:42:06,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:42:06,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:42:06,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:42:06,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:42:06,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:42:06,270 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:42:06,270 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:42:06,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:42:06,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:42:06,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:42:06,272 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_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b99743698ab3c7d4b9a6ed0a9848578e31609919a215161232195dca61aa5c4e [2022-11-22 02:42:06,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:42:06,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:42:06,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:42:06,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:42:06,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:42:06,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2022-11-22 02:42:10,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:42:10,517 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:42:10,518 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2022-11-22 02:42:10,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/f9ba39a65/b1da122bdaf848128eab7107ee077f54/FLAGdc7a2b3b4 [2022-11-22 02:42:10,566 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/data/f9ba39a65/b1da122bdaf848128eab7107ee077f54 [2022-11-22 02:42:10,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:42:10,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:42:10,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:10,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:42:10,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:42:10,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2b95b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10, skipping insertion in model container [2022-11-22 02:42:10,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:42:10,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:42:10,843 WARN L237 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_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2022-11-22 02:42:10,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:10,878 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:42:10,919 WARN L237 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_c57d62b7-c883-48bc-8576-19a404be4f71/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2022-11-22 02:42:10,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:42:10,952 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:42:10,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10 WrapperNode [2022-11-22 02:42:10,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:42:10,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:10,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:42:10,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:42:10,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:10,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,021 INFO L138 Inliner]: procedures = 20, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-11-22 02:42:11,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:42:11,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:42:11,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:42:11,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:42:11,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:42:11,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:42:11,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:42:11,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:42:11,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (1/1) ... [2022-11-22 02:42:11,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:42:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:11,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:42:11,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:42:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:42:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:42:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:42:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 02:42:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:42:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:42:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-22 02:42:11,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:42:11,370 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:42:11,373 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:42:11,555 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:42:11,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:42:11,562 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 02:42:11,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11 BoogieIcfgContainer [2022-11-22 02:42:11,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:42:11,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:42:11,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:42:11,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:42:11,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:42:10" (1/3) ... [2022-11-22 02:42:11,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658533d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:11, skipping insertion in model container [2022-11-22 02:42:11,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:42:10" (2/3) ... [2022-11-22 02:42:11,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@658533d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:42:11, skipping insertion in model container [2022-11-22 02:42:11,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11" (3/3) ... [2022-11-22 02:42:11,576 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2022-11-22 02:42:11,598 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:42:11,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:42:11,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:42:11,667 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15f6b473, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:42:11,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:42:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 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) [2022-11-22 02:42:11,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:42:11,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:11,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:42:11,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:42:11,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:11,689 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-11-22 02:42:11,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:42:11,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537373151] [2022-11-22 02:42:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:11,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:42:11,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:42:11,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:42:11,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:42:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:11,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 02:42:11,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:12,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:42:12,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:42:12,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537373151] [2022-11-22 02:42:12,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537373151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:12,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:12,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144448762] [2022-11-22 02:42:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:12,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:42:12,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:42:12,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:42:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:42:12,247 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:42:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:12,335 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-22 02:42:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:42:12,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-22 02:42:12,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:12,362 INFO L225 Difference]: With dead ends: 15 [2022-11-22 02:42:12,363 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:42:12,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:42:12,374 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:12,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:42:12,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:42:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:42:12,408 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) [2022-11-22 02:42:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:42:12,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-22 02:42:12,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:12,410 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:42:12,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 02:42:12,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:42:12,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:42:12,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:42:12,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:42:12,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:42:12,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:42:12,652 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:42:12,652 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 02:42:12,653 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:42:12,653 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 02:42:12,654 INFO L895 garLoopResultBuilder]: At program point L123(lines 119 124) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2022-11-22 02:42:12,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 114) no Hoare annotation was computed. [2022-11-22 02:42:12,655 INFO L895 garLoopResultBuilder]: At program point L116(lines 110 117) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2022-11-22 02:42:12,656 INFO L899 garLoopResultBuilder]: For program point L114(line 114) no Hoare annotation was computed. [2022-11-22 02:42:12,658 INFO L899 garLoopResultBuilder]: For program point L114-1(line 114) no Hoare annotation was computed. [2022-11-22 02:42:12,659 INFO L899 garLoopResultBuilder]: For program point L114-3(line 114) no Hoare annotation was computed. [2022-11-22 02:42:12,663 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:42:12,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:42:12,682 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,686 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,687 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,687 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:42:12 BoogieIcfgContainer [2022-11-22 02:42:12,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:42:12,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:42:12,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:42:12,690 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:42:12,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:42:11" (3/4) ... [2022-11-22 02:42:12,694 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:42:12,707 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-22 02:42:12,708 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 02:42:12,709 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 02:42:12,711 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:42:12,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:42:12,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:42:12,773 INFO L158 Benchmark]: Toolchain (without parser) took 2200.29ms. Allocated memory is still 77.6MB. Free memory was 56.1MB in the beginning and 49.1MB in the end (delta: 7.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-22 02:42:12,774 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:12,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.29ms. Allocated memory is still 77.6MB. Free memory was 55.9MB in the beginning and 44.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:42:12,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.37ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 43.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:12,776 INFO L158 Benchmark]: Boogie Preprocessor took 57.07ms. Allocated memory is still 77.6MB. Free memory was 43.5MB in the beginning and 42.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:12,777 INFO L158 Benchmark]: RCFGBuilder took 483.66ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 51.6MB in the end (delta: -9.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 02:42:12,777 INFO L158 Benchmark]: TraceAbstraction took 1121.47ms. Allocated memory is still 77.6MB. Free memory was 50.9MB in the beginning and 51.2MB in the end (delta: -301.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:42:12,783 INFO L158 Benchmark]: Witness Printer took 80.61ms. Allocated memory is still 77.6MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:42:12,788 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 56.6MB. Free memory was 34.9MB in the beginning and 34.8MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.29ms. Allocated memory is still 77.6MB. Free memory was 55.9MB in the beginning and 44.9MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.37ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 43.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.07ms. Allocated memory is still 77.6MB. Free memory was 43.5MB in the beginning and 42.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.66ms. Allocated memory is still 77.6MB. Free memory was 42.1MB in the beginning and 51.6MB in the end (delta: -9.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1121.47ms. Allocated memory is still 77.6MB. Free memory was 50.9MB in the beginning and 51.2MB in the end (delta: -301.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.61ms. Allocated memory is still 77.6MB. Free memory was 51.2MB in the beginning and 49.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 114]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 9 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant [2022-11-22 02:42:12,808 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,808 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 119]: Loop Invariant [2022-11-22 02:42:12,809 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-22 02:42:12,809 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-22 02:42:12,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c57d62b7-c883-48bc-8576-19a404be4f71/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE