./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs --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 cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:18:38,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:18:38,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:18:38,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:18:38,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:18:38,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:18:38,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:18:38,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:18:38,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:18:38,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:18:38,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:18:38,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:18:38,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:18:38,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:18:38,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:18:38,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:18:38,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:18:38,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:18:38,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:18:38,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:18:38,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:18:38,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:18:38,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:18:38,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:18:38,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:18:38,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:18:38,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:18:38,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:18:38,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:18:38,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:18:38,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:18:38,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:18:38,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:18:38,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:18:38,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:18:38,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:18:38,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:18:38,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:18:38,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:18:38,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:18:38,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:18:38,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:18:38,289 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:18:38,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:18:38,291 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:18:38,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:18:38,292 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:18:38,292 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:18:38,292 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:18:38,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:18:38,293 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:18:38,293 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:18:38,293 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:18:38,294 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:18:38,294 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:18:38,294 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:18:38,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:18:38,295 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:18:38,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:18:38,296 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:18:38,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:18:38,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:18:38,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:18:38,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:18:38,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:18:38,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:18:38,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:18:38,299 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:18:38,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:18:38,300 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:18:38,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:18:38,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:18:38,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:18:38,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:38,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:18:38,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:18:38,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:18:38,302 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:18:38,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:18:38,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:18:38,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:18:38,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:18:38,304 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c [2021-11-19 13:18:38,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:18:38,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:18:38,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:18:38,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:18:38,681 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:18:38,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2021-11-19 13:18:38,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/354d3b42b/b7fea1a1bc5149d5865c74fd3d5c44ab/FLAG66c2fb43d [2021-11-19 13:18:39,463 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:18:39,464 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2021-11-19 13:18:39,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/354d3b42b/b7fea1a1bc5149d5865c74fd3d5c44ab/FLAG66c2fb43d [2021-11-19 13:18:39,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/354d3b42b/b7fea1a1bc5149d5865c74fd3d5c44ab [2021-11-19 13:18:39,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:18:39,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:18:39,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:39,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:18:39,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:18:39,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:39" (1/1) ... [2021-11-19 13:18:39,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155cbef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:39, skipping insertion in model container [2021-11-19 13:18:39,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:39" (1/1) ... [2021-11-19 13:18:39,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:18:39,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:18:40,111 WARN L230 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2021-11-19 13:18:40,115 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:40,126 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:18:40,182 WARN L230 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2021-11-19 13:18:40,183 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:40,203 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:18:40,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40 WrapperNode [2021-11-19 13:18:40,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:40,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:40,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:18:40,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:18:40,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,266 INFO L137 Inliner]: procedures = 17, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2021-11-19 13:18:40,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:40,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:18:40,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:18:40,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:18:40,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:18:40,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:18:40,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:18:40,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:18:40,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (1/1) ... [2021-11-19 13:18:40,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:40,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:18:40,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:18:40,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:18:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:18:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 13:18:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:18:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 13:18:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:18:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 13:18:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:18:40,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:18:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 13:18:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:18:40,647 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:18:40,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:18:41,032 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:18:41,128 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:18:41,129 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 13:18:41,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:18:41 BoogieIcfgContainer [2021-11-19 13:18:41,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:18:41,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:18:41,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:18:41,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:18:41,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:18:39" (1/3) ... [2021-11-19 13:18:41,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409dde56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:18:41, skipping insertion in model container [2021-11-19 13:18:41,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:40" (2/3) ... [2021-11-19 13:18:41,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@409dde56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:18:41, skipping insertion in model container [2021-11-19 13:18:41,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:18:41" (3/3) ... [2021-11-19 13:18:41,148 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2021-11-19 13:18:41,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:18:41,154 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:18:41,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:18:41,224 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 [2021-11-19 13:18:41,224 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:18:41,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 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) [2021-11-19 13:18:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:18:41,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:18:41,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:18:41,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:18:41,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:18:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash -904375748, now seen corresponding path program 1 times [2021-11-19 13:18:41,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:18:41,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260006989] [2021-11-19 13:18:41,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:18:41,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:18:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:18:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:18:41,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:18:41,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260006989] [2021-11-19 13:18:41,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260006989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:18:41,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:18:41,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 13:18:41,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297298046] [2021-11-19 13:18:41,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:18:41,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:18:41,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:18:41,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:18:41,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:18:41,523 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-19 13:18:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:18:41,559 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2021-11-19 13:18:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:18:41,562 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-19 13:18:41,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:18:41,574 INFO L225 Difference]: With dead ends: 73 [2021-11-19 13:18:41,574 INFO L226 Difference]: Without dead ends: 35 [2021-11-19 13:18:41,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:18:41,583 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:18:41,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:18:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-19 13:18:41,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-19 13:18:41,624 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) [2021-11-19 13:18:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-19 13:18:41,627 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2021-11-19 13:18:41,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:18:41,628 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-19 13:18:41,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-19 13:18:41,629 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-19 13:18:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:18:41,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:18:41,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:18:41,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 13:18:41,630 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:18:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:18:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash 967314873, now seen corresponding path program 1 times [2021-11-19 13:18:41,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:18:41,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230033946] [2021-11-19 13:18:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:18:41,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:18:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:18:41,725 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 13:18:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 13:18:41,795 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 13:18:41,795 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 13:18:41,798 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 13:18:41,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 13:18:41,805 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 13:18:41,809 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:18:41,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:18:41 BoogieIcfgContainer [2021-11-19 13:18:41,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:18:41,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:18:41,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:18:41,851 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:18:41,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:18:41" (3/4) ... [2021-11-19 13:18:41,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 13:18:41,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:18:41,857 INFO L158 Benchmark]: Toolchain (without parser) took 2072.62ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.8MB in the beginning and 68.4MB in the end (delta: -16.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,857 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:18:41,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 80.4MB in the end (delta: -28.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,859 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.89ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,860 INFO L158 Benchmark]: Boogie Preprocessor took 45.92ms. Allocated memory is still 107.0MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,861 INFO L158 Benchmark]: RCFGBuilder took 817.52ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 58.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,862 INFO L158 Benchmark]: TraceAbstraction took 715.39ms. Allocated memory is still 107.0MB. Free memory was 58.1MB in the beginning and 68.9MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:18:41,862 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 68.4MB in the end (delta: 539.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:18:41,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 88.1MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.53ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.6MB in the beginning and 80.4MB in the end (delta: -28.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.89ms. Allocated memory is still 107.0MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.92ms. Allocated memory is still 107.0MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 817.52ms. Allocated memory is still 107.0MB. Free memory was 76.2MB in the beginning and 58.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 715.39ms. Allocated memory is still 107.0MB. Free memory was 58.1MB in the beginning and 68.9MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 107.0MB. Free memory was 68.9MB in the beginning and 68.4MB in the end (delta: 539.6kB). 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: 168]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryFLOAToperation at line 163, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 153. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; [L163] float x = -0.0f; [L164] CALL, EXPR __ieee754_log10f(x) [L107] float y, z; [L108] __int32_t i, k, hx; VAL [\old(x)=4294967296, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [\old(x)=4294967296, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [\old(x)=4294967296, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L164] RET, EXPR __ieee754_log10f(x) [L164] float res = __ieee754_log10f(x); [L167] CALL, EXPR isinf_float(res) [L147] __int32_t ix; VAL [\old(x)=4294967297, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967297, zero=0, zero_log=0] [L149] ieee_float_shape_type gf_u; [L150] gf_u.value = (x) [L151] EXPR gf_u.word [L151] (ix) = gf_u.word [L153] ix &= 0x7fffffff [L154] return ((ix) == 0x7f800000L); [L167] RET, EXPR isinf_float(res) [L167] COND TRUE !isinf_float(res) [L168] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4294967297, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-11-19 13:18:41,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs --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 cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:18:44,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:18:44,879 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:18:44,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:18:44,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:18:44,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:18:44,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:18:44,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:18:44,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:18:44,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:18:44,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:18:44,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:18:44,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:18:44,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:18:44,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:18:44,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:18:44,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:18:44,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:18:44,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:18:45,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:18:45,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:18:45,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:18:45,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:18:45,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:18:45,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:18:45,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:18:45,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:18:45,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:18:45,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:18:45,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:18:45,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:18:45,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:18:45,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:18:45,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:18:45,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:18:45,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:18:45,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:18:45,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:18:45,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:18:45,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:18:45,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:18:45,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 13:18:45,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:18:45,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:18:45,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:18:45,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:18:45,113 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:18:45,114 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:18:45,114 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:18:45,114 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:18:45,115 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:18:45,115 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:18:45,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:18:45,118 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:18:45,119 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:18:45,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:18:45,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:18:45,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:18:45,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:18:45,120 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:18:45,120 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:18:45,121 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:18:45,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:18:45,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:18:45,122 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:18:45,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:18:45,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:18:45,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:18:45,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:18:45,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:45,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:18:45,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:18:45,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:18:45,124 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:18:45,125 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:18:45,125 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:18:45,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:18:45,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:18:45,127 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb6b1424a272796845acc1f70223dfacd3f866998a144ff42a8a4da1c8cca40c [2021-11-19 13:18:45,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:18:45,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:18:45,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:18:45,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:18:45,655 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:18:45,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2021-11-19 13:18:45,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/888fd0b86/baad890411ce4da48a38aead3ec4e65a/FLAGb2f2e2be3 [2021-11-19 13:18:46,480 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:18:46,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2021-11-19 13:18:46,496 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/888fd0b86/baad890411ce4da48a38aead3ec4e65a/FLAGb2f2e2be3 [2021-11-19 13:18:46,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/data/888fd0b86/baad890411ce4da48a38aead3ec4e65a [2021-11-19 13:18:46,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:18:46,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:18:46,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:46,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:18:46,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:18:46,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:46" (1/1) ... [2021-11-19 13:18:46,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672b7ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:46, skipping insertion in model container [2021-11-19 13:18:46,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:18:46" (1/1) ... [2021-11-19 13:18:46,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:18:46,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:18:47,146 WARN L230 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2021-11-19 13:18:47,149 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:47,166 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:18:47,249 WARN L230 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_2962790e-ee2d-4b9a-b057-ad333c51d6e0/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2021-11-19 13:18:47,250 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:18:47,276 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:18:47,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47 WrapperNode [2021-11-19 13:18:47,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:18:47,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:47,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:18:47,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:18:47,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,355 INFO L137 Inliner]: procedures = 20, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2021-11-19 13:18:47,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:18:47,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:18:47,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:18:47,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:18:47,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:18:47,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:18:47,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:18:47,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:18:47,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (1/1) ... [2021-11-19 13:18:47,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:18:47,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:18:47,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:18:47,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:18:47,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:18:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:18:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:18:47,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 13:18:47,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:18:47,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:18:47,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:18:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 13:18:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:18:47,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:18:47,709 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:18:47,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:19:07,720 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:19:07,728 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:19:07,728 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-19 13:19:07,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:19:07 BoogieIcfgContainer [2021-11-19 13:19:07,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:19:07,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:19:07,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:19:07,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:19:07,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:18:46" (1/3) ... [2021-11-19 13:19:07,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16374f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:19:07, skipping insertion in model container [2021-11-19 13:19:07,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:18:47" (2/3) ... [2021-11-19 13:19:07,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16374f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:19:07, skipping insertion in model container [2021-11-19 13:19:07,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:19:07" (3/3) ... [2021-11-19 13:19:07,743 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2021-11-19 13:19:07,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:19:07,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:19:07,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:19:07,862 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 [2021-11-19 13:19:07,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:19:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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) [2021-11-19 13:19:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 13:19:07,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:19:07,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:19:07,908 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:19:07,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:19:07,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2021-11-19 13:19:07,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:19:07,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611556329] [2021-11-19 13:19:07,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:19:07,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:19:07,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:19:07,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:19:07,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:19:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:19:09,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:19:09,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:19:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:19:09,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:19:09,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:19:09,376 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:19:09,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611556329] [2021-11-19 13:19:09,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611556329] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:19:09,377 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:19:09,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:19:09,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294320624] [2021-11-19 13:19:09,381 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:19:09,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:19:09,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:19:09,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:19:09,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:19:09,424 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-19 13:19:09,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:19:09,450 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2021-11-19 13:19:09,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:19:09,452 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-19 13:19:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:19:09,464 INFO L225 Difference]: With dead ends: 92 [2021-11-19 13:19:09,464 INFO L226 Difference]: Without dead ends: 44 [2021-11-19 13:19:09,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:19:09,473 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:19:09,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:19:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-19 13:19:09,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-19 13:19:09,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 states have internal predecessors, (58), 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) [2021-11-19 13:19:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2021-11-19 13:19:09,518 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2021-11-19 13:19:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:19:09,518 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2021-11-19 13:19:09,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-19 13:19:09,519 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2021-11-19 13:19:09,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-19 13:19:09,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:19:09,520 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:19:09,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:19:09,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:19:09,722 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:19:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:19:09,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2021-11-19 13:19:09,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:19:09,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979531662] [2021-11-19 13:19:09,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:19:09,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:19:09,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:19:09,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:19:09,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:19:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:19:10,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-19 13:19:10,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:19:11,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:19:11,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:19:18,655 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 32))) (or (not (= (fp.div c_currentRoundingMode (fp.neg c_~two25_log10~0) c_~zero~0) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_11|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_11|) (_ bv2139095040 32)))) is different from false [2021-11-19 13:19:38,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:19:38,467 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:19:38,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979531662] [2021-11-19 13:19:38,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979531662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:19:38,468 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:19:38,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-19 13:19:38,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688950372] [2021-11-19 13:19:38,469 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:19:38,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-19 13:19:38,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:19:38,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-19 13:19:38,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2021-11-19 13:19:38,473 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-19 13:19:43,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:45,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:48,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:50,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:53,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:55,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:19:57,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:20:00,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:20:02,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:20:04,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-19 13:20:04,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:20:04,234 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2021-11-19 13:20:04,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:20:04,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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 [2021-11-19 13:20:04,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:20:04,280 INFO L225 Difference]: With dead ends: 54 [2021-11-19 13:20:04,280 INFO L226 Difference]: Without dead ends: 46 [2021-11-19 13:20:04,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=41, Invalid=172, Unknown=1, NotChecked=26, Total=240 [2021-11-19 13:20:04,283 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 38 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 72 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:20:04,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 310 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 8 Unknown, 72 Unchecked, 23.8s Time] [2021-11-19 13:20:04,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-19 13:20:04,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-11-19 13:20:04,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 states have internal predecessors, (57), 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) [2021-11-19 13:20:04,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-11-19 13:20:04,294 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 13 [2021-11-19 13:20:04,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:20:04,294 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-11-19 13:20:04,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 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) [2021-11-19 13:20:04,294 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-11-19 13:20:04,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 13:20:04,295 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:20:04,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:20:04,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:20:04,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:20:04,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:20:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:20:04,497 INFO L85 PathProgramCache]: Analyzing trace with hash -657075683, now seen corresponding path program 1 times [2021-11-19 13:20:04,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:20:04,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541806906] [2021-11-19 13:20:04,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:20:04,498 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:20:04,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:20:04,499 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:20:04,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:20:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:20:05,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:20:05,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:20:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:20:05,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:20:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:20:05,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:20:05,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541806906] [2021-11-19 13:20:05,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541806906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:20:05,825 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:20:05,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:20:05,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094596344] [2021-11-19 13:20:05,826 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:20:05,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:20:05,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:20:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:20:05,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:20:05,828 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2021-11-19 13:20:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:20:05,895 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-11-19 13:20:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:20:05,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) Word has length 14 [2021-11-19 13:20:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:20:05,896 INFO L225 Difference]: With dead ends: 44 [2021-11-19 13:20:05,896 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 13:20:05,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:20:05,899 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 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 [2021-11-19 13:20:05,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:20:05,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 13:20:05,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 13:20:05,902 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) [2021-11-19 13:20:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 13:20:05,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-19 13:20:05,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:20:05,903 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 13:20:05,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 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) [2021-11-19 13:20:05,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 13:20:05,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 13:20:05,907 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 13:20:05,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:20:06,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:20:06,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 13:20:06,370 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2021-11-19 13:20:06,370 INFO L854 garLoopResultBuilder]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2021-11-19 13:20:06,371 INFO L858 garLoopResultBuilder]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2021-11-19 13:20:06,371 INFO L854 garLoopResultBuilder]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|)) [2021-11-19 13:20:06,371 INFO L858 garLoopResultBuilder]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2021-11-19 13:20:06,372 INFO L858 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2021-11-19 13:20:06,372 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-19 13:20:06,372 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 13:20:06,372 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 13:20:06,373 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 120) no Hoare annotation was computed. [2021-11-19 13:20:06,373 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 90) no Hoare annotation was computed. [2021-11-19 13:20:06,373 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-19 13:20:06,373 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-11-19 13:20:06,374 INFO L858 garLoopResultBuilder]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2021-11-19 13:20:06,374 INFO L854 garLoopResultBuilder]: At program point L95(lines 21 97) the Hoare annotation is: false [2021-11-19 13:20:06,374 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 46) no Hoare annotation was computed. [2021-11-19 13:20:06,375 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2021-11-19 13:20:06,375 INFO L854 garLoopResultBuilder]: At program point L154(lines 146 155) the Hoare annotation is: (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) [2021-11-19 13:20:06,375 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 122) no Hoare annotation was computed. [2021-11-19 13:20:06,375 INFO L861 garLoopResultBuilder]: At program point L172(lines 157 173) the Hoare annotation is: true [2021-11-19 13:20:06,376 INFO L858 garLoopResultBuilder]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-11-19 13:20:06,376 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 13:20:06,376 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 131) no Hoare annotation was computed. [2021-11-19 13:20:06,376 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2021-11-19 13:20:06,377 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 73) no Hoare annotation was computed. [2021-11-19 13:20:06,377 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2021-11-19 13:20:06,377 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 148 152) no Hoare annotation was computed. [2021-11-19 13:20:06,378 INFO L854 garLoopResultBuilder]: At program point L148-2(lines 148 152) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_isinf_float_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))))) [2021-11-19 13:20:06,378 INFO L858 garLoopResultBuilder]: For program point L148-3(lines 148 152) no Hoare annotation was computed. [2021-11-19 13:20:06,378 INFO L858 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2021-11-19 13:20:06,378 INFO L854 garLoopResultBuilder]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2021-11-19 13:20:06,379 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 13:20:06,379 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 65) no Hoare annotation was computed. [2021-11-19 13:20:06,379 INFO L858 garLoopResultBuilder]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2021-11-19 13:20:06,379 INFO L854 garLoopResultBuilder]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2021-11-19 13:20:06,380 INFO L858 garLoopResultBuilder]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2021-11-19 13:20:06,380 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2021-11-19 13:20:06,380 INFO L854 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-11-19 13:20:06,380 INFO L858 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-11-19 13:20:06,381 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2021-11-19 13:20:06,381 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-11-19 13:20:06,381 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 95) no Hoare annotation was computed. [2021-11-19 13:20:06,381 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-11-19 13:20:06,382 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 118) no Hoare annotation was computed. [2021-11-19 13:20:06,382 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 96) no Hoare annotation was computed. [2021-11-19 13:20:06,382 INFO L854 garLoopResultBuilder]: At program point L142(lines 106 143) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))))) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)))) [2021-11-19 13:20:06,382 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 170) no Hoare annotation was computed. [2021-11-19 13:20:06,387 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 13:20:06,389 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:20:06,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,407 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,407 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,407 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:20:06 BoogieIcfgContainer [2021-11-19 13:20:06,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:20:06,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:20:06,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:20:06,417 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:20:06,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:19:07" (3/4) ... [2021-11-19 13:20:06,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 13:20:06,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-19 13:20:06,439 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-19 13:20:06,439 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 13:20:06,440 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 13:20:06,469 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())))) && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) [2021-11-19 13:20:06,470 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) [2021-11-19 13:20:06,471 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 1bv32 [2021-11-19 13:20:06,507 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 13:20:06,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:20:06,508 INFO L158 Benchmark]: Toolchain (without parser) took 79713.62ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 36.5MB in the beginning and 34.5MB in the end (delta: 2.0MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,509 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:20:06,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.32ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 37.6MB in the end (delta: -1.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.61ms. Allocated memory is still 58.7MB. Free memory was 37.6MB in the beginning and 35.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,511 INFO L158 Benchmark]: Boogie Preprocessor took 61.77ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,511 INFO L158 Benchmark]: RCFGBuilder took 20312.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.1MB in the beginning and 43.3MB in the end (delta: -10.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,512 INFO L158 Benchmark]: TraceAbstraction took 58682.40ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 40.4MB in the end (delta: 2.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,512 INFO L158 Benchmark]: Witness Printer took 90.94ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 34.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 13:20:06,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.7MB in the end (delta: 42.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.32ms. Allocated memory is still 58.7MB. Free memory was 36.3MB in the beginning and 37.6MB in the end (delta: -1.3MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.61ms. Allocated memory is still 58.7MB. Free memory was 37.6MB in the beginning and 35.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.77ms. Allocated memory is still 58.7MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20312.23ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 33.1MB in the beginning and 43.3MB in the end (delta: -10.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 58682.40ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 40.4MB in the end (delta: 2.4MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 90.94ms. Allocated memory is still 71.3MB. Free memory was 40.4MB in the beginning and 34.5MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 168]: 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 23.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 23.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 72 IncrementalHoareTripleChecker+Unchecked, 275 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 103 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 68 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 28.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 402 SizeOfPredicates, 15 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant [2021-11-19 13:20:06,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,530 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 106]: Loop Invariant [2021-11-19 13:20:06,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,532 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,533 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 13:20:06,534 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())))) && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-19 13:20:06,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2962790e-ee2d-4b9a-b057-ad333c51d6e0/bin/utaipan-UbGMyvGFUs/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