./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:07:24,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:07:24,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:07:24,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:07:24,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:07:24,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:07:24,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:07:24,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:07:24,896 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:07:24,896 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:07:24,897 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:07:24,897 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:07:24,897 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:07:24,900 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:07:24,900 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:07:24,900 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:07:24,901 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:07:24,901 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:07:24,902 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:07:24,906 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:07:24,906 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:07:24,907 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:07:24,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:07:24,908 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:07:24,908 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:07:24,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:07:24,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:07:24,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:07:24,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:07:24,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:07:24,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:07:24,914 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:07:24,914 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:07:24,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:07:24,915 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:07:24,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:07:24,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:07:24,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:07:24,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:24,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:07:24,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:07:24,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:07:24,921 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:07:24,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:07:24,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:07:24,922 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:07:24,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:07:24,922 INFO L153 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_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2024-11-09 06:07:25,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:07:25,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:07:25,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:07:25,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:07:25,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:07:25,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c Unable to find full path for "g++" [2024-11-09 06:07:27,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:07:27,733 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:07:27,734 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 06:07:27,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/5b3df8fe2/0fd9816e1fac4f04b168a5947b47a67e/FLAGcdf378bb6 [2024-11-09 06:07:27,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/5b3df8fe2/0fd9816e1fac4f04b168a5947b47a67e [2024-11-09 06:07:27,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:07:27,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:07:27,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:27,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:07:27,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:07:27,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:27" (1/1) ... [2024-11-09 06:07:27,799 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd6194b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:27, skipping insertion in model container [2024-11-09 06:07:27,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:27" (1/1) ... [2024-11-09 06:07:27,848 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:07:28,126 WARN L250 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_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2024-11-09 06:07:28,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:28,148 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:07:28,201 WARN L250 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_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2024-11-09 06:07:28,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:28,222 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:07:28,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28 WrapperNode [2024-11-09 06:07:28,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:28,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:28,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:07:28,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:07:28,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,280 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2024-11-09 06:07:28,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:28,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:07:28,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:07:28,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:07:28,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:07:28,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:07:28,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:07:28,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:07:28,333 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (1/1) ... [2024-11-09 06:07:28,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:28,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:28,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:07:28,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:07:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:07:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:07:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:07:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:07:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:07:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:07:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:07:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:07:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:07:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:07:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-09 06:07:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-09 06:07:28,545 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:07:28,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:07:29,034 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-09 06:07:29,034 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:07:29,207 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:07:29,208 INFO L316 CfgBuilder]: Removed 33 assume(true) statements. [2024-11-09 06:07:29,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:29 BoogieIcfgContainer [2024-11-09 06:07:29,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:07:29,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:07:29,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:07:29,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:07:29,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:07:27" (1/3) ... [2024-11-09 06:07:29,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfe3b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:29, skipping insertion in model container [2024-11-09 06:07:29,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:28" (2/3) ... [2024-11-09 06:07:29,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfe3b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:29, skipping insertion in model container [2024-11-09 06:07:29,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:29" (3/3) ... [2024-11-09 06:07:29,219 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2024-11-09 06:07:29,242 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:07:29,243 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:07:29,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:07:29,353 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@61348457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:07:29,354 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:07:29,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:07:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:07:29,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:29,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:29,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:07:29,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:29,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2116185935, now seen corresponding path program 1 times [2024-11-09 06:07:29,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:29,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604576749] [2024-11-09 06:07:29,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:29,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:29,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:07:29,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:29,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604576749] [2024-11-09 06:07:29,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604576749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:29,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:29,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:29,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3109844] [2024-11-09 06:07:29,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:29,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:07:29,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:29,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:07:29,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:07:29,582 INFO L87 Difference]: Start difference. First operand has 76 states, 71 states have (on average 1.704225352112676) internal successors, (121), 72 states have internal predecessors, (121), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:07:29,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:29,654 INFO L93 Difference]: Finished difference Result 151 states and 251 transitions. [2024-11-09 06:07:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:07:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 06:07:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:29,665 INFO L225 Difference]: With dead ends: 151 [2024-11-09 06:07:29,666 INFO L226 Difference]: Without dead ends: 74 [2024-11-09 06:07:29,669 INFO L431 NwaCegarLoop]: 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 [2024-11-09 06:07:29,673 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:29,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:07:29,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-09 06:07:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2024-11-09 06:07:29,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.2142857142857142) internal successors, (85), 70 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:07:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 89 transitions. [2024-11-09 06:07:29,723 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 89 transitions. Word has length 13 [2024-11-09 06:07:29,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:29,724 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 89 transitions. [2024-11-09 06:07:29,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:07:29,724 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2024-11-09 06:07:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 06:07:29,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:29,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:29,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:07:29,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:07:29,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:29,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2660973, now seen corresponding path program 1 times [2024-11-09 06:07:29,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:29,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842395029] [2024-11-09 06:07:29,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:29,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:07:29,864 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:07:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:07:29,962 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:07:29,963 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:07:29,966 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:07:29,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:07:29,972 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:07:29,997 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:07:30,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:07:30 BoogieIcfgContainer [2024-11-09 06:07:30,001 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:07:30,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:07:30,002 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:07:30,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:07:30,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:29" (3/4) ... [2024-11-09 06:07:30,006 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:07:30,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:07:30,009 INFO L158 Benchmark]: Toolchain (without parser) took 2223.26ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 104.0MB in the end (delta: 41.8MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,009 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:07:30,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.44ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 129.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.84ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 127.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,011 INFO L158 Benchmark]: Boogie Preprocessor took 49.21ms. Allocated memory is still 176.2MB. Free memory was 127.4MB in the beginning and 124.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,012 INFO L158 Benchmark]: RCFGBuilder took 876.91ms. Allocated memory is still 176.2MB. Free memory was 124.7MB in the beginning and 142.3MB in the end (delta: -17.5MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,012 INFO L158 Benchmark]: TraceAbstraction took 790.23ms. Allocated memory is still 176.2MB. Free memory was 140.9MB in the beginning and 104.0MB in the end (delta: 37.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-09 06:07:30,013 INFO L158 Benchmark]: Witness Printer took 5.90ms. Allocated memory is still 176.2MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:07:30,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 130.0MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.44ms. Allocated memory is still 176.2MB. Free memory was 145.7MB in the beginning and 129.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.84ms. Allocated memory is still 176.2MB. Free memory was 129.5MB in the beginning and 127.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.21ms. Allocated memory is still 176.2MB. Free memory was 127.4MB in the beginning and 124.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 876.91ms. Allocated memory is still 176.2MB. Free memory was 124.7MB in the beginning and 142.3MB in the end (delta: -17.5MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. * TraceAbstraction took 790.23ms. Allocated memory is still 176.2MB. Free memory was 140.9MB in the beginning and 104.0MB in the end (delta: 37.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.90ms. Allocated memory is still 176.2MB. Free memory is still 104.0MB. There was no memory consumed. 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: 237]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [ha=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141910] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [a=2399141910, b=2399141910, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [a=2399141912, b=2399141909, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141911] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 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, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 9 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=76occurred 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 [2024-11-09 06:07:30,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:07:32,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:07:32,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:07:32,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:07:32,814 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:07:32,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:07:32,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:07:32,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:07:32,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:07:32,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:07:32,879 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:07:32,879 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:07:32,880 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:07:32,880 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:07:32,881 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:07:32,881 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:07:32,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:07:32,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:07:32,883 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:07:32,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:07:32,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:07:32,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:07:32,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:07:32,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:07:32,889 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:07:32,889 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:07:32,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:07:32,890 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:07:32,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:07:32,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:07:32,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:07:32,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:07:32,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:07:32,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:07:32,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:07:32,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:32,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:07:32,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:07:32,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:07:32,896 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:07:32,897 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:07:32,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:07:32,898 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:07:32,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2024-11-09 06:07:33,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:07:33,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:07:33,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:07:33,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:07:33,416 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:07:33,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c Unable to find full path for "g++" [2024-11-09 06:07:35,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:07:36,120 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:07:36,121 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2024-11-09 06:07:36,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/c9ddfc71b/3966b16c5aa440f086ab6b7b756527df/FLAGcb61d8452 [2024-11-09 06:07:36,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/data/c9ddfc71b/3966b16c5aa440f086ab6b7b756527df [2024-11-09 06:07:36,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:07:36,153 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:07:36,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:36,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:07:36,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:07:36,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32174633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36, skipping insertion in model container [2024-11-09 06:07:36,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:07:36,456 WARN L250 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_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2024-11-09 06:07:36,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:36,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:07:36,615 WARN L250 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_5862c150-2301-40d6-b9be-4f558dc91dd9/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2024-11-09 06:07:36,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:07:36,656 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:07:36,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36 WrapperNode [2024-11-09 06:07:36,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:07:36,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:36,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:07:36,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:07:36,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,736 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2024-11-09 06:07:36,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:07:36,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:07:36,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:07:36,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:07:36,752 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:07:36,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:07:36,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:07:36,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:07:36,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (1/1) ... [2024-11-09 06:07:36,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:07:36,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:07:36,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:07:36,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:07:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:07:36,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:07:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:07:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 06:07:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:07:36,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:07:36,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:07:36,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 06:07:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:07:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:07:36,915 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-09 06:07:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-09 06:07:37,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:07:37,070 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:07:39,650 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-09 06:07:39,650 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:07:39,667 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:07:39,667 INFO L316 CfgBuilder]: Removed 32 assume(true) statements. [2024-11-09 06:07:39,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:39 BoogieIcfgContainer [2024-11-09 06:07:39,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:07:39,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:07:39,670 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:07:39,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:07:39,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:07:36" (1/3) ... [2024-11-09 06:07:39,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95c416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:39, skipping insertion in model container [2024-11-09 06:07:39,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:07:36" (2/3) ... [2024-11-09 06:07:39,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95c416d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:07:39, skipping insertion in model container [2024-11-09 06:07:39,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:39" (3/3) ... [2024-11-09 06:07:39,677 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2024-11-09 06:07:39,696 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:07:39,696 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:07:39,768 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:07:39,774 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74f596b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:07:39,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:07:39,778 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 85 states have (on average 1.6823529411764706) internal successors, (143), 86 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:07:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:07:39,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:39,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:39,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:07:39,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:39,794 INFO L85 PathProgramCache]: Analyzing trace with hash 2007137316, now seen corresponding path program 1 times [2024-11-09 06:07:39,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:07:39,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251092350] [2024-11-09 06:07:39,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:39,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:07:39,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:07:39,810 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:07:39,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 06:07:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:40,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:07:40,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:07:40,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:07:40,076 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:07:40,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251092350] [2024-11-09 06:07:40,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251092350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:40,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:40,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:07:40,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631715890] [2024-11-09 06:07:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:40,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:07:40,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:07:40,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:07:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:07:40,119 INFO L87 Difference]: Start difference. First operand has 90 states, 85 states have (on average 1.6823529411764706) internal successors, (143), 86 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-11-09 06:07:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:40,160 INFO L93 Difference]: Finished difference Result 178 states and 294 transitions. [2024-11-09 06:07:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:07:40,163 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-09 06:07:40,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:40,171 INFO L225 Difference]: With dead ends: 178 [2024-11-09 06:07:40,171 INFO L226 Difference]: Without dead ends: 87 [2024-11-09 06:07:40,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:07:40,178 INFO L432 NwaCegarLoop]: 114 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, 114 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 [2024-11-09 06:07:40,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:07:40,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-09 06:07:40,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-09 06:07:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:07:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 111 transitions. [2024-11-09 06:07:40,223 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 111 transitions. Word has length 16 [2024-11-09 06:07:40,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:40,224 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 111 transitions. [2024-11-09 06:07:40,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-11-09 06:07:40,225 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 111 transitions. [2024-11-09 06:07:40,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:07:40,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:40,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:40,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:07:40,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:07:40,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:07:40,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:40,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1043607964, now seen corresponding path program 1 times [2024-11-09 06:07:40,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:07:40,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206637655] [2024-11-09 06:07:40,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:40,433 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:07:40,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:07:40,437 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:07:40,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 06:07:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:40,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:07:40,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:41,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:07:41,460 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:07:41,460 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:07:41,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206637655] [2024-11-09 06:07:41,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206637655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:41,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:41,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:07:41,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364985307] [2024-11-09 06:07:41,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:41,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:07:41,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:07:41,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:07:41,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:07:41,466 INFO L87 Difference]: Start difference. First operand 87 states and 111 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-09 06:07:45,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:47,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:49,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:51,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:53,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:55,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:07:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:55,607 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2024-11-09 06:07:55,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:07:55,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 21 [2024-11-09 06:07:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:55,642 INFO L225 Difference]: With dead ends: 186 [2024-11-09 06:07:55,643 INFO L226 Difference]: Without dead ends: 116 [2024-11-09 06:07:55,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:07:55,645 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 46 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:55,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 438 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 6 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 06:07:55,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-09 06:07:55,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 96. [2024-11-09 06:07:55,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.2608695652173914) internal successors, (116), 92 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:07:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 120 transitions. [2024-11-09 06:07:55,664 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 120 transitions. Word has length 21 [2024-11-09 06:07:55,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:55,664 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 120 transitions. [2024-11-09 06:07:55,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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) [2024-11-09 06:07:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 120 transitions. [2024-11-09 06:07:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:07:55,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:55,666 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:07:55,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:07:55,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:07:55,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:07:55,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash 456801950, now seen corresponding path program 1 times [2024-11-09 06:07:55,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:07:55,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953784365] [2024-11-09 06:07:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:55,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:07:55,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:07:55,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:07:55,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 06:07:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:56,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:07:56,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:07:56,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:07:57,180 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-09 06:07:57,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 31 [2024-11-09 06:07:59,366 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-09 06:07:59,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 59 [2024-11-09 06:07:59,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:07:59,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 57 [2024-11-09 06:08:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:08:01,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:08:01,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:08:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953784365] [2024-11-09 06:08:01,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953784365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:01,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:01,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 06:08:01,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719733620] [2024-11-09 06:08:01,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:01,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:08:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:08:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:08:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:08:01,197 INFO L87 Difference]: Start difference. First operand 96 states and 120 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-09 06:08:06,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:10,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:12,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:14,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:16,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:18,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:20,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:22,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:24,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:26,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:28,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:30,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:33,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:35,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:37,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:39,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:41,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:43,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:45,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:47,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:49,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:51,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:53,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:08:54,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:57,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:59,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:01,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:03,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:05,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:07,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:09,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:11,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:13,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:15,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:17,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:23,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:25,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:27,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:29,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:31,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:33,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:35,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:37,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:38,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:09:38,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:38,924 INFO L93 Difference]: Finished difference Result 104 states and 127 transitions. [2024-11-09 06:09:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:09:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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 21 [2024-11-09 06:09:38,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:38,959 INFO L225 Difference]: With dead ends: 104 [2024-11-09 06:09:38,959 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 06:09:38,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:09:38,961 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 119 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 43 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 43 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:38,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 718 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 43 Unknown, 0 Unchecked, 95.5s Time] [2024-11-09 06:09:38,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 06:09:38,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 06:09:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 92 states have (on average 1.25) internal successors, (115), 92 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:09:38,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 119 transitions. [2024-11-09 06:09:38,976 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 119 transitions. Word has length 21 [2024-11-09 06:09:38,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:38,976 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 119 transitions. [2024-11-09 06:09:38,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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) [2024-11-09 06:09:38,977 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions. [2024-11-09 06:09:38,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:09:38,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:38,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:38,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 06:09:39,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:39,180 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:09:39,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:39,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1121194241, now seen corresponding path program 1 times [2024-11-09 06:09:39,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:09:39,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998241190] [2024-11-09 06:09:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:39,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:39,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:09:39,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:09:39,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 06:09:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:39,346 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:09:39,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:09:40,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:09:40,543 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:09:40,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998241190] [2024-11-09 06:09:40,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [998241190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:40,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:40,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 06:09:40,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300828112] [2024-11-09 06:09:40,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:40,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:09:40,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:09:40,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:09:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:09:40,550 INFO L87 Difference]: Start difference. First operand 96 states and 119 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-09 06:09:41,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:41,772 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2024-11-09 06:09:41,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:09:41,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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 26 [2024-11-09 06:09:41,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:41,774 INFO L225 Difference]: With dead ends: 106 [2024-11-09 06:09:41,774 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 06:09:41,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:09:41,776 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:41,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 96 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:09:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 06:09:41,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 06:09:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 34 states have internal predecessors, (36), 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) [2024-11-09 06:09:41,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2024-11-09 06:09:41,784 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 26 [2024-11-09 06:09:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:41,785 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2024-11-09 06:09:41,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 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) [2024-11-09 06:09:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2024-11-09 06:09:41,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:09:41,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:41,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:41,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 06:09:41,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:41,987 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:09:41,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:41,988 INFO L85 PathProgramCache]: Analyzing trace with hash 728167231, now seen corresponding path program 1 times [2024-11-09 06:09:41,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:09:41,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592556017] [2024-11-09 06:09:41,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:41,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:09:41,991 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:09:41,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-09 06:09:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:42,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:09:42,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:42,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:09:42,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-09 06:09:42,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-09 06:09:43,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2024-11-09 06:09:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:09:44,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:09:44,343 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:09:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592556017] [2024-11-09 06:09:44,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592556017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:44,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:44,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-09 06:09:44,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627969108] [2024-11-09 06:09:44,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:44,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:09:44,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:09:44,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:09:44,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:09:44,346 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2024-11-09 06:09:47,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:47,185 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2024-11-09 06:09:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 06:09:47,186 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 26 [2024-11-09 06:09:47,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:47,187 INFO L225 Difference]: With dead ends: 52 [2024-11-09 06:09:47,187 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 06:09:47,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-09 06:09:47,188 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 22 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:47,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 164 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 06:09:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 06:09:47,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 06:09:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-11-09 06:09:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-09 06:09:47,195 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2024-11-09 06:09:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:47,196 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-09 06:09:47,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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) [2024-11-09 06:09:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-09 06:09:47,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:09:47,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:47,197 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:47,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 06:09:47,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:47,398 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:09:47,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:47,399 INFO L85 PathProgramCache]: Analyzing trace with hash -872950465, now seen corresponding path program 1 times [2024-11-09 06:09:47,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:09:47,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146266623] [2024-11-09 06:09:47,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:47,399 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:47,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:09:47,401 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:09:47,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-09 06:09:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:47,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:09:47,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:47,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 06:09:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:09:48,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:09:48,566 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:09:48,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146266623] [2024-11-09 06:09:48,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146266623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:48,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:48,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 06:09:48,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947174800] [2024-11-09 06:09:48,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:48,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:09:48,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:09:48,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:09:48,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:09:48,568 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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) [2024-11-09 06:09:49,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:49,609 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2024-11-09 06:09:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:09:49,610 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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 26 [2024-11-09 06:09:49,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:49,610 INFO L225 Difference]: With dead ends: 36 [2024-11-09 06:09:49,610 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 06:09:49,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:09:49,612 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:49,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 06:09:49,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 06:09:49,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 06:09:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0) internal successors, (26), 26 states have internal predecessors, (26), 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) [2024-11-09 06:09:49,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2024-11-09 06:09:49,620 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2024-11-09 06:09:49,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:49,621 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2024-11-09 06:09:49,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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) [2024-11-09 06:09:49,622 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2024-11-09 06:09:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:09:49,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:49,623 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:49,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-09 06:09:49,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:49,824 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:09:49,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:49,824 INFO L85 PathProgramCache]: Analyzing trace with hash -192892095, now seen corresponding path program 1 times [2024-11-09 06:09:49,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:09:49,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172924886] [2024-11-09 06:09:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:49,825 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:49,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:09:49,828 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:09:49,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 06:09:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:49,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:09:49,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:09:50,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:09:50,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-09 06:09:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:09:51,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:09:51,595 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:09:51,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172924886] [2024-11-09 06:09:51,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172924886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:51,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:51,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-09 06:09:51,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859745446] [2024-11-09 06:09:51,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:51,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:09:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:09:51,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:09:51,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:09:51,598 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-11-09 06:09:53,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:53,493 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2024-11-09 06:09:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 06:09:53,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 26 [2024-11-09 06:09:53,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:53,494 INFO L225 Difference]: With dead ends: 27 [2024-11-09 06:09:53,494 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:09:53,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:09:53,496 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:53,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 98 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 06:09:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:09:53,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:09:53,497 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) [2024-11-09 06:09:53,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:09:53,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-09 06:09:53,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:53,498 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:09:53,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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) [2024-11-09 06:09:53,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:09:53,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:09:53,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:09:53,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-09 06:09:53,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:09:53,704 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:53,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:09:55,124 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:09:55,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:09:55 BoogieIcfgContainer [2024-11-09 06:09:55,150 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:09:55,151 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:09:55,151 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:09:55,151 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:09:55,151 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:07:39" (3/4) ... [2024-11-09 06:09:55,155 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:09:55,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2024-11-09 06:09:55,170 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 06:09:55,172 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-09 06:09:55,173 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:09:55,173 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:09:55,308 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:09:55,309 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:09:55,309 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:09:55,310 INFO L158 Benchmark]: Toolchain (without parser) took 139156.83ms. Allocated memory was 77.6MB in the beginning and 130.0MB in the end (delta: 52.4MB). Free memory was 52.8MB in the beginning and 56.6MB in the end (delta: -3.8MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,310 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:09:55,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.10ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 52.6MB in the beginning and 82.1MB in the end (delta: -29.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.94ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 79.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,312 INFO L158 Benchmark]: Boogie Preprocessor took 86.37ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 77.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,312 INFO L158 Benchmark]: RCFGBuilder took 2841.12ms. Allocated memory is still 107.0MB. Free memory was 77.0MB in the beginning and 76.4MB in the end (delta: 580.5kB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,312 INFO L158 Benchmark]: TraceAbstraction took 135480.10ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 75.9MB in the beginning and 61.8MB in the end (delta: 14.1MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,313 INFO L158 Benchmark]: Witness Printer took 158.41ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 56.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:09:55,319 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 77.6MB. Free memory was 53.1MB in the beginning and 53.0MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.10ms. Allocated memory was 77.6MB in the beginning and 107.0MB in the end (delta: 29.4MB). Free memory was 52.6MB in the beginning and 82.1MB in the end (delta: -29.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.94ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 79.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.37ms. Allocated memory is still 107.0MB. Free memory was 79.9MB in the beginning and 77.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2841.12ms. Allocated memory is still 107.0MB. Free memory was 77.0MB in the beginning and 76.4MB in the end (delta: 580.5kB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 135480.10ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 75.9MB in the beginning and 61.8MB in the end (delta: 14.1MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. * Witness Printer took 158.41ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 56.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 237]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 134.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 119.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 49 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 114.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 1739 SdHoareTripleChecker+Invalid, 113.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1374 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1008 IncrementalHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 365 mSDtfsCounter, 1008 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 181 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 10.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=2, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 20 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 155 ConstructedInterpolants, 95 QuantifiedInterpolants, 3058 SizeOfPredicates, 26 NumberOfNonLiveVariables, 684 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt)))) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:09:55,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5862c150-2301-40d6-b9be-4f558dc91dd9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE