./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i --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_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:28:45,157 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:28:45,264 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:28:45,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:28:45,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:28:45,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:28:45,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:28:45,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:28:45,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:28:45,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:28:45,320 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:28:45,321 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:28:45,321 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:28:45,322 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:28:45,322 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:28:45,322 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:28:45,323 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:28:45,323 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:28:45,324 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:28:45,324 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:28:45,324 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:28:45,325 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:28:45,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:28:45,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:28:45,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:28:45,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:28:45,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:28:45,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:28:45,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:28:45,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:28:45,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:28:45,329 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:28:45,329 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:28:45,329 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:28:45,330 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:28:45,330 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:28:45,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:28:45,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:28:45,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:28:45,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:28:45,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:28:45,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:28:45,333 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:28:45,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:28:45,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:28:45,334 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:28:45,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:28:45,334 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_298a792b-3f1c-40c9-a775-d24604c0e82a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2024-11-09 06:28:45,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:28:45,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:28:45,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:28:45,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:28:45,671 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:28:45,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i Unable to find full path for "g++" [2024-11-09 06:28:47,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:28:47,827 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:28:47,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-11-09 06:28:47,843 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/62f7a6a84/5e90ed8c8ede44848d63d8f6d6e4a4ad/FLAGa682fe067 [2024-11-09 06:28:47,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/62f7a6a84/5e90ed8c8ede44848d63d8f6d6e4a4ad [2024-11-09 06:28:47,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:28:47,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:28:47,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:28:47,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:28:47,883 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:28:47,884 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:28:47" (1/1) ... [2024-11-09 06:28:47,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca639f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:47, skipping insertion in model container [2024-11-09 06:28:47,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:28:47" (1/1) ... [2024-11-09 06:28:47,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:28:48,110 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_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-11-09 06:28:48,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:28:48,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:28:48,199 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_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-11-09 06:28:48,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:28:48,262 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:28:48,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48 WrapperNode [2024-11-09 06:28:48,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:28:48,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:28:48,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:28:48,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:28:48,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,327 INFO L138 Inliner]: procedures = 30, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2024-11-09 06:28:48,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:28:48,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:28:48,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:28:48,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:28:48,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:28:48,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:28:48,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:28:48,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:28:48,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (1/1) ... [2024-11-09 06:28:48,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:28:48,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:28:48,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:28:48,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:28:48,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:28:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-09 06:28:48,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:28:48,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:28:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:28:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:28:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:28:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:28:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:28:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:28:48,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:28:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:28:48,717 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:28:48,719 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:28:49,267 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-09 06:28:49,267 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:28:49,866 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:28:49,866 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:28:49,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:28:49 BoogieIcfgContainer [2024-11-09 06:28:49,867 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:28:49,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:28:49,870 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:28:49,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:28:49,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:28:47" (1/3) ... [2024-11-09 06:28:49,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9b30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:28:49, skipping insertion in model container [2024-11-09 06:28:49,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:48" (2/3) ... [2024-11-09 06:28:49,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb9b30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:28:49, skipping insertion in model container [2024-11-09 06:28:49,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:28:49" (3/3) ... [2024-11-09 06:28:49,877 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2024-11-09 06:28:49,895 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:28:49,896 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:28:49,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:28:49,980 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;@4a4faca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:28:49,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:28:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:28:49,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:28:49,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:49,993 INFO L215 NwaCegarLoop]: trace histogram [11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:28:49,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:50,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:50,002 INFO L85 PathProgramCache]: Analyzing trace with hash -451759627, now seen corresponding path program 1 times [2024-11-09 06:28:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:28:50,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962669399] [2024-11-09 06:28:50,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:28:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:28:50,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [34833884] [2024-11-09 06:28:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:50,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:28:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:28:50,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:28:50,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:28:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:28:51,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:28:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:28:52,343 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:28:52,345 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:28:52,347 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:28:52,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:28:52,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 06:28:52,556 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:28:52,658 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:28:52,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:28:52 BoogieIcfgContainer [2024-11-09 06:28:52,662 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:28:52,663 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:28:52,663 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:28:52,663 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:28:52,664 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:28:49" (3/4) ... [2024-11-09 06:28:52,668 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:28:52,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:28:52,672 INFO L158 Benchmark]: Toolchain (without parser) took 4797.94ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 139.3MB in the beginning and 77.2MB in the end (delta: 62.1MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,673 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:28:52,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.52ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 125.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.45ms. Allocated memory is still 167.8MB. Free memory was 125.9MB in the beginning and 122.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,676 INFO L158 Benchmark]: Boogie Preprocessor took 66.15ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 119.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,678 INFO L158 Benchmark]: RCFGBuilder took 1472.07ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 119.7MB in the beginning and 158.5MB in the end (delta: -38.8MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,682 INFO L158 Benchmark]: TraceAbstraction took 2792.97ms. Allocated memory is still 209.7MB. Free memory was 157.4MB in the beginning and 77.2MB in the end (delta: 80.2MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. [2024-11-09 06:28:52,682 INFO L158 Benchmark]: Witness Printer took 7.38ms. Allocated memory is still 209.7MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:28:52,685 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.52ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 125.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.45ms. Allocated memory is still 167.8MB. Free memory was 125.9MB in the beginning and 122.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.15ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 119.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1472.07ms. Allocated memory was 167.8MB in the beginning and 209.7MB in the end (delta: 41.9MB). Free memory was 119.7MB in the beginning and 158.5MB in the end (delta: -38.8MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2792.97ms. Allocated memory is still 209.7MB. Free memory was 157.4MB in the beginning and 77.2MB in the end (delta: 80.2MB). Peak memory consumption was 79.2MB. Max. memory is 16.1GB. * Witness Printer took 7.38ms. Allocated memory is still 209.7MB. Free memory is still 77.2MB. 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: 19]: 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 someBinaryDOUBLEComparisonOperation at line 53. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L47] signed long int last_1_WrapperStruct00_var_1_7 = 4; [L48] double last_1_WrapperStruct00_var_1_13 = 0.97; [L115] isInitial = 1 [L116] FCALL initially() [L117] COND TRUE 1 [L118] CALL updateLastVariables() [L107] EXPR WrapperStruct00.var_1_7 [L107] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L108] EXPR WrapperStruct00.var_1_13 [L108] last_1_WrapperStruct00_var_1_13 = WrapperStruct00.var_1_13 [L118] RET updateLastVariables() [L119] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L91] WrapperStruct00.var_1_3 = __VERIFIER_nondet_long() [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L94] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L97] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L101] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L119] RET updateVariables() [L120] CALL step() [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR WrapperStruct00.var_1_8 [L52] COND FALSE !(! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) [L59] EXPR WrapperStruct00.var_1_12 [L59] WrapperStruct00.var_1_9 = WrapperStruct00.var_1_12 [L61] EXPR WrapperStruct00.var_1_9 [L61] EXPR WrapperStruct00.var_1_9 [L61] COND FALSE !(WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_3 [L64] WrapperStruct00.var_1_7 = (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3) [L66] EXPR WrapperStruct00.var_1_9 [L66] EXPR WrapperStruct00.var_1_3 [L66] EXPR WrapperStruct00.var_1_9 [L66] COND FALSE !((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_14 [L79] WrapperStruct00.var_1_2 [L79] COND TRUE WrapperStruct00.var_1_2 [L80] EXPR WrapperStruct00.var_1_3 [L80] EXPR WrapperStruct00.var_1_9 [L80] EXPR WrapperStruct00.var_1_9 [L80] WrapperStruct00.var_1_1 = ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9) [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR WrapperStruct00.var_1_2 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR WrapperStruct00.var_1_7 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_8 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR WrapperStruct00.var_1_13 [L111] EXPR WrapperStruct00.var_1_14 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111-L112] return (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 1, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:28:52,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:28:54,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:28:55,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:28:55,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:28:55,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:28:55,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:28:55,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:28:55,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:28:55,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:28:55,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:28:55,149 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:28:55,150 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:28:55,150 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:28:55,154 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:28:55,155 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:28:55,155 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:28:55,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:28:55,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:28:55,158 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:28:55,158 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:28:55,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:28:55,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:28:55,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:28:55,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:28:55,160 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:28:55,161 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:28:55,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:28:55,161 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:28:55,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:28:55,162 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:28:55,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:28:55,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:28:55,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:28:55,163 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:28:55,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:28:55,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:28:55,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:28:55,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:28:55,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:28:55,167 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:28:55,167 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:28:55,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:28:55,168 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:28:55,168 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_298a792b-3f1c-40c9-a775-d24604c0e82a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06db6f319d52eb323239c55a3f8926e2d1f65f125a385def75e49857a30f4ad4 [2024-11-09 06:28:55,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:28:55,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:28:55,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:28:55,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:28:55,613 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:28:55,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i Unable to find full path for "g++" [2024-11-09 06:28:57,790 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:28:58,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:28:58,042 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2024-11-09 06:28:58,052 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/66ad67e77/698dbe450d1d47fe902c106a4112a09f/FLAGda0a34b1a [2024-11-09 06:28:58,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/data/66ad67e77/698dbe450d1d47fe902c106a4112a09f [2024-11-09 06:28:58,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:28:58,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:28:58,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:28:58,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:28:58,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:28:58,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6287406d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58, skipping insertion in model container [2024-11-09 06:28:58,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:28:58,306 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_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-11-09 06:28:58,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:28:58,420 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:28:58,438 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_298a792b-3f1c-40c9-a775-d24604c0e82a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2024-11-09 06:28:58,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:28:58,544 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:28:58,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58 WrapperNode [2024-11-09 06:28:58,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:28:58,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:28:58,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:28:58,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:28:58,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,689 INFO L138 Inliner]: procedures = 34, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 407 [2024-11-09 06:28:58,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:28:58,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:28:58,698 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:28:58,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:28:58,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:28:58,779 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:28:58,779 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:28:58,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:28:58,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (1/1) ... [2024-11-09 06:28:58,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:28:58,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:28:58,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:28:58,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:28:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:28:58,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:28:58,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-11-09 06:28:58,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-11-09 06:28:58,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:28:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:28:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:28:58,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:28:58,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:28:58,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:28:58,982 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:28:58,984 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:28:59,719 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-09 06:28:59,719 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:28:59,733 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:28:59,733 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:28:59,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:28:59 BoogieIcfgContainer [2024-11-09 06:28:59,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:28:59,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:28:59,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:28:59,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:28:59,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:28:58" (1/3) ... [2024-11-09 06:28:59,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd3f5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:28:59, skipping insertion in model container [2024-11-09 06:28:59,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:28:58" (2/3) ... [2024-11-09 06:28:59,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd3f5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:28:59, skipping insertion in model container [2024-11-09 06:28:59,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:28:59" (3/3) ... [2024-11-09 06:28:59,744 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2024-11-09 06:28:59,763 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:28:59,763 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:28:59,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:28:59,825 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;@22049dee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:28:59,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:28:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:28:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 06:28:59,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:59,841 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:28:59,842 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:28:59,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1894060799, now seen corresponding path program 1 times [2024-11-09 06:28:59,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:28:59,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363891192] [2024-11-09 06:28:59,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:59,862 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 06:28:59,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:28:59,866 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:28:59,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:00,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:29:00,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 06:29:00,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:00,242 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:00,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363891192] [2024-11-09 06:29:00,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363891192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:00,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:00,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:29:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950742995] [2024-11-09 06:29:00,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:00,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:29:00,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:00,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:29:00,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:29:00,277 INFO L87 Difference]: Start difference. First operand has 87 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:29:00,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:00,302 INFO L93 Difference]: Finished difference Result 164 states and 256 transitions. [2024-11-09 06:29:00,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:29:00,307 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2024-11-09 06:29:00,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:00,313 INFO L225 Difference]: With dead ends: 164 [2024-11-09 06:29:00,314 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 06:29:00,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 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 06:29:00,321 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 06:29:00,322 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 06:29:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 06:29:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-09 06:29:00,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.373134328358209) internal successors, (92), 67 states have internal predecessors, (92), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:29:00,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2024-11-09 06:29:00,364 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 94 [2024-11-09 06:29:00,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:00,365 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2024-11-09 06:29:00,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:29:00,365 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2024-11-09 06:29:00,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 06:29:00,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:00,369 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:00,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:29:00,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:00,574 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:00,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash -851921583, now seen corresponding path program 1 times [2024-11-09 06:29:00,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:00,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942148198] [2024-11-09 06:29:00,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:00,576 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 06:29:00,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:00,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:00,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:00,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:29:00,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:00,982 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 21 treesize of output 9 [2024-11-09 06:29:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:01,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:01,040 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:01,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942148198] [2024-11-09 06:29:01,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942148198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:01,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:01,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:29:01,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600206284] [2024-11-09 06:29:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:01,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:01,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:01,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:01,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:01,049 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:01,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:01,099 INFO L93 Difference]: Finished difference Result 157 states and 225 transitions. [2024-11-09 06:29:01,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:01,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-09 06:29:01,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:01,101 INFO L225 Difference]: With dead ends: 157 [2024-11-09 06:29:01,102 INFO L226 Difference]: Without dead ends: 80 [2024-11-09 06:29:01,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:01,104 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:01,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:29:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-09 06:29:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-09 06:29:01,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:29:01,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2024-11-09 06:29:01,118 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 94 [2024-11-09 06:29:01,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:01,120 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2024-11-09 06:29:01,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:01,121 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2024-11-09 06:29:01,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 06:29:01,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:01,124 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:01,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:01,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:01,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:01,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:01,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1854697811, now seen corresponding path program 1 times [2024-11-09 06:29:01,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:01,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053314118] [2024-11-09 06:29:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:01,328 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 06:29:01,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:01,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:01,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:01,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:29:01,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:01,724 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 8 treesize of output 1 [2024-11-09 06:29:01,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:01,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 30 treesize of output 33 [2024-11-09 06:29:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:01,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:01,853 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:01,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053314118] [2024-11-09 06:29:01,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053314118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:01,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:01,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627989582] [2024-11-09 06:29:01,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:01,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:01,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:01,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:01,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:01,856 INFO L87 Difference]: Start difference. First operand 80 states and 113 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:02,723 INFO L93 Difference]: Finished difference Result 199 states and 279 transitions. [2024-11-09 06:29:02,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:02,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2024-11-09 06:29:02,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:02,727 INFO L225 Difference]: With dead ends: 199 [2024-11-09 06:29:02,727 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 06:29:02,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:29:02,729 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 52 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:02,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 359 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:29:02,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 06:29:02,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2024-11-09 06:29:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.3592233009708738) internal successors, (140), 104 states have internal predecessors, (140), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 166 transitions. [2024-11-09 06:29:02,764 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 166 transitions. Word has length 94 [2024-11-09 06:29:02,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:02,764 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 166 transitions. [2024-11-09 06:29:02,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 166 transitions. [2024-11-09 06:29:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 06:29:02,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:02,767 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:02,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:02,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:02,975 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:02,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:02,976 INFO L85 PathProgramCache]: Analyzing trace with hash 560361326, now seen corresponding path program 1 times [2024-11-09 06:29:02,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:02,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022288884] [2024-11-09 06:29:02,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:02,977 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 06:29:02,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:02,980 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:02,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:03,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:29:03,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:03,288 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 21 treesize of output 9 [2024-11-09 06:29:03,318 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:03,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:03,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:03,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022288884] [2024-11-09 06:29:03,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022288884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:03,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:03,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:29:03,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568968265] [2024-11-09 06:29:03,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:03,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:03,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:03,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:03,322 INFO L87 Difference]: Start difference. First operand 119 states and 166 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:03,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:03,360 INFO L93 Difference]: Finished difference Result 235 states and 329 transitions. [2024-11-09 06:29:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:03,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-09 06:29:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:03,367 INFO L225 Difference]: With dead ends: 235 [2024-11-09 06:29:03,368 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 06:29:03,368 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:03,372 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:03,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:29:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 06:29:03,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-09 06:29:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.3398058252427185) internal successors, (138), 104 states have internal predecessors, (138), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:03,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 164 transitions. [2024-11-09 06:29:03,397 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 164 transitions. Word has length 96 [2024-11-09 06:29:03,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:03,398 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 164 transitions. [2024-11-09 06:29:03,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 164 transitions. [2024-11-09 06:29:03,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 06:29:03,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:03,401 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:03,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:03,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:03,602 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:03,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:03,602 INFO L85 PathProgramCache]: Analyzing trace with hash 167334316, now seen corresponding path program 1 times [2024-11-09 06:29:03,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:03,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008309054] [2024-11-09 06:29:03,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:03,603 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 06:29:03,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:03,605 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:03,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:03,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:29:03,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:04,010 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 19 treesize of output 1 [2024-11-09 06:29:04,096 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 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-09 06:29:04,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:04,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:29:04,419 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:04,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:29:04,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:04,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 50 treesize of output 26 [2024-11-09 06:29:04,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:04,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-09 06:29:04,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:04,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 63 [2024-11-09 06:29:05,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:05,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 85 treesize of output 88 [2024-11-09 06:29:07,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:07,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 115 treesize of output 108 [2024-11-09 06:29:08,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:08,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 195 treesize of output 81 [2024-11-09 06:29:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 106 proven. 24 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 06:29:08,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:09,124 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:09,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008309054] [2024-11-09 06:29:09,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008309054] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:09,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:29:09,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 16 [2024-11-09 06:29:09,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501133770] [2024-11-09 06:29:09,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:09,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:29:09,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:09,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:29:09,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=191, Unknown=1, NotChecked=0, Total=240 [2024-11-09 06:29:09,127 INFO L87 Difference]: Start difference. First operand 119 states and 164 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:09,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:09,939 INFO L93 Difference]: Finished difference Result 249 states and 342 transitions. [2024-11-09 06:29:09,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:29:09,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-09 06:29:09,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:09,942 INFO L225 Difference]: With dead ends: 249 [2024-11-09 06:29:09,942 INFO L226 Difference]: Without dead ends: 133 [2024-11-09 06:29:09,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2024-11-09 06:29:09,944 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 56 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:09,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 372 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:29:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-09 06:29:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 95. [2024-11-09 06:29:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 80 states have internal predecessors, (103), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2024-11-09 06:29:09,958 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 96 [2024-11-09 06:29:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:09,959 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2024-11-09 06:29:09,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2024-11-09 06:29:09,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 06:29:09,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:09,965 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:09,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:10,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:10,166 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:10,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:10,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1343255813, now seen corresponding path program 1 times [2024-11-09 06:29:10,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:10,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874102324] [2024-11-09 06:29:10,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:10,168 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 06:29:10,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:10,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:10,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:10,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:10,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:29:10,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:10,486 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 8 treesize of output 1 [2024-11-09 06:29:10,550 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 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-09 06:29:10,601 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 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-09 06:29:10,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:10,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 28 [2024-11-09 06:29:10,880 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:10,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 38 [2024-11-09 06:29:11,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 41 [2024-11-09 06:29:11,301 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 52 [2024-11-09 06:29:11,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 74 treesize of output 79 [2024-11-09 06:29:11,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 85 [2024-11-09 06:29:11,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:11,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 91 [2024-11-09 06:29:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 152 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 06:29:12,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:12,341 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:12,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874102324] [2024-11-09 06:29:12,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874102324] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:12,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:29:12,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14] total 16 [2024-11-09 06:29:12,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935235474] [2024-11-09 06:29:12,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:12,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:12,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:12,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-09 06:29:12,344 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:12,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:12,804 INFO L93 Difference]: Finished difference Result 214 states and 290 transitions. [2024-11-09 06:29:12,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:12,805 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 96 [2024-11-09 06:29:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:12,807 INFO L225 Difference]: With dead ends: 214 [2024-11-09 06:29:12,807 INFO L226 Difference]: Without dead ends: 127 [2024-11-09 06:29:12,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:29:12,809 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 45 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:12,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 369 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:29:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-09 06:29:12,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 95. [2024-11-09 06:29:12,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.2911392405063291) internal successors, (102), 80 states have internal predecessors, (102), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 128 transitions. [2024-11-09 06:29:12,828 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 128 transitions. Word has length 96 [2024-11-09 06:29:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:12,828 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 128 transitions. [2024-11-09 06:29:12,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:12,829 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 128 transitions. [2024-11-09 06:29:12,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 06:29:12,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:12,830 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:12,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:29:13,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,031 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:13,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:13,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1328159340, now seen corresponding path program 1 times [2024-11-09 06:29:13,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:13,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071684888] [2024-11-09 06:29:13,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:13,033 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 06:29:13,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:13,036 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:13,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:29:13,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:13,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:13,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:13,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071684888] [2024-11-09 06:29:13,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071684888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:13,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:13,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:29:13,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574410708] [2024-11-09 06:29:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:13,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:29:13,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:29:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:13,270 INFO L87 Difference]: Start difference. First operand 95 states and 128 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:13,299 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-09 06:29:13,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:29:13,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-09 06:29:13,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:13,300 INFO L225 Difference]: With dead ends: 183 [2024-11-09 06:29:13,300 INFO L226 Difference]: Without dead ends: 96 [2024-11-09 06:29:13,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:29:13,302 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:13,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:29:13,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-09 06:29:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-09 06:29:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 80 states have (on average 1.2875) internal successors, (103), 81 states have internal predecessors, (103), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:13,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2024-11-09 06:29:13,322 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 129 transitions. Word has length 97 [2024-11-09 06:29:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:13,323 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 129 transitions. [2024-11-09 06:29:13,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:13,323 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 129 transitions. [2024-11-09 06:29:13,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 06:29:13,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:13,326 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:13,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,527 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:13,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:13,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1069993902, now seen corresponding path program 1 times [2024-11-09 06:29:13,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:13,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139737315] [2024-11-09 06:29:13,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:13,528 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 06:29:13,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:13,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:13,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (9)] Waiting until timeout for monitored process [2024-11-09 06:29:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:13,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:29:13,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:13,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:13,787 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:13,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139737315] [2024-11-09 06:29:13,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139737315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:13,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:13,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677798717] [2024-11-09 06:29:13,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:13,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:13,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:13,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:13,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:13,790 INFO L87 Difference]: Start difference. First operand 96 states and 129 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:13,843 INFO L93 Difference]: Finished difference Result 187 states and 252 transitions. [2024-11-09 06:29:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:13,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-09 06:29:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:13,844 INFO L225 Difference]: With dead ends: 187 [2024-11-09 06:29:13,845 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 06:29:13,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:13,845 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:13,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 426 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:29:13,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 06:29:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2024-11-09 06:29:13,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.2839506172839505) internal successors, (104), 82 states have internal predecessors, (104), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:13,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 130 transitions. [2024-11-09 06:29:13,862 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 130 transitions. Word has length 97 [2024-11-09 06:29:13,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:13,862 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 130 transitions. [2024-11-09 06:29:13,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:13,862 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 130 transitions. [2024-11-09 06:29:13,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 06:29:13,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:13,863 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:13,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (9)] Ended with exit code 0 [2024-11-09 06:29:14,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:14,064 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:14,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:14,065 INFO L85 PathProgramCache]: Analyzing trace with hash -741353326, now seen corresponding path program 1 times [2024-11-09 06:29:14,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:14,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436409289] [2024-11-09 06:29:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:14,066 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 06:29:14,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:14,069 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:14,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (10)] Waiting until timeout for monitored process [2024-11-09 06:29:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:14,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:29:14,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:14,378 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 8 treesize of output 1 [2024-11-09 06:29:14,441 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 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-09 06:29:14,491 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 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-09 06:29:14,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:14,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 28 [2024-11-09 06:29:14,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:14,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 36 treesize of output 38 [2024-11-09 06:29:14,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:14,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 61 [2024-11-09 06:29:17,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:17,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 78 [2024-11-09 06:29:17,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:17,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 94 treesize of output 105 [2024-11-09 06:29:17,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:17,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 107 treesize of output 131 [2024-11-09 06:29:20,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:20,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 148 treesize of output 156 [2024-11-09 06:29:20,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:20,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 151 treesize of output 69 [2024-11-09 06:29:20,637 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 160 proven. 27 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-09 06:29:20,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:20,857 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:20,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436409289] [2024-11-09 06:29:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1436409289] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:20,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:29:20,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2024-11-09 06:29:20,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263584650] [2024-11-09 06:29:20,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:20,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:20,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:20,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:20,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=231, Unknown=2, NotChecked=0, Total=306 [2024-11-09 06:29:20,860 INFO L87 Difference]: Start difference. First operand 97 states and 130 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:21,289 INFO L93 Difference]: Finished difference Result 213 states and 283 transitions. [2024-11-09 06:29:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:29:21,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2024-11-09 06:29:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:21,291 INFO L225 Difference]: With dead ends: 213 [2024-11-09 06:29:21,291 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 06:29:21,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=78, Invalid=262, Unknown=2, NotChecked=0, Total=342 [2024-11-09 06:29:21,292 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 34 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:21,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 313 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:29:21,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 06:29:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2024-11-09 06:29:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 81 states have (on average 1.271604938271605) internal successors, (103), 82 states have internal predecessors, (103), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 06:29:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2024-11-09 06:29:21,301 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 97 [2024-11-09 06:29:21,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:21,302 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2024-11-09 06:29:21,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2024-11-09 06:29:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 06:29:21,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:21,304 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:21,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (10)] Ended with exit code 0 [2024-11-09 06:29:21,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:21,505 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:21,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:21,505 INFO L85 PathProgramCache]: Analyzing trace with hash 81714423, now seen corresponding path program 1 times [2024-11-09 06:29:21,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:21,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505592344] [2024-11-09 06:29:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:21,506 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 06:29:21,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:21,507 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:21,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (11)] Waiting until timeout for monitored process [2024-11-09 06:29:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:21,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:29:21,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:21,873 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 8 treesize of output 1 [2024-11-09 06:29:21,877 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 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-09 06:29:21,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:21,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 47 [2024-11-09 06:29:21,951 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:21,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 60 [2024-11-09 06:29:24,061 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:24,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 79 [2024-11-09 06:29:24,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:24,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 61 [2024-11-09 06:29:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:24,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:24,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505592344] [2024-11-09 06:29:24,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505592344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:24,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:24,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-09 06:29:24,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679066213] [2024-11-09 06:29:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:24,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:29:24,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:29:24,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2024-11-09 06:29:24,846 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:27,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:29,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:31,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:33,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:35,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:37,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:29:39,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:39,961 INFO L93 Difference]: Finished difference Result 302 states and 396 transitions. [2024-11-09 06:29:39,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:29:39,962 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 98 [2024-11-09 06:29:39,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:39,964 INFO L225 Difference]: With dead ends: 302 [2024-11-09 06:29:39,964 INFO L226 Difference]: Without dead ends: 213 [2024-11-09 06:29:39,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=63, Invalid=146, Unknown=1, NotChecked=0, Total=210 [2024-11-09 06:29:39,965 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 182 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 19 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:39,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 582 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 371 Invalid, 6 Unknown, 0 Unchecked, 14.3s Time] [2024-11-09 06:29:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-09 06:29:39,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 172. [2024-11-09 06:29:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 146 states have (on average 1.273972602739726) internal successors, (186), 148 states have internal predecessors, (186), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 06:29:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 228 transitions. [2024-11-09 06:29:39,980 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 228 transitions. Word has length 98 [2024-11-09 06:29:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:39,981 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 228 transitions. [2024-11-09 06:29:39,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 228 transitions. [2024-11-09 06:29:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 06:29:39,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:39,983 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:39,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (11)] Ended with exit code 0 [2024-11-09 06:29:40,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:40,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:40,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:40,184 INFO L85 PathProgramCache]: Analyzing trace with hash -13206038, now seen corresponding path program 1 times [2024-11-09 06:29:40,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:40,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54781768] [2024-11-09 06:29:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:40,185 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 06:29:40,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:40,185 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:40,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (12)] Waiting until timeout for monitored process [2024-11-09 06:29:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:40,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:29:40,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:40,465 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 8 treesize of output 1 [2024-11-09 06:29:40,469 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 0 case distinctions, treesize of input 17 treesize of output 17 [2024-11-09 06:29:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:40,525 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:40,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:40,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54781768] [2024-11-09 06:29:40,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54781768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:40,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:40,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:29:40,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464167406] [2024-11-09 06:29:40,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:40,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:29:40,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:40,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:29:40,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:29:40,528 INFO L87 Difference]: Start difference. First operand 172 states and 228 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:41,070 INFO L93 Difference]: Finished difference Result 429 states and 560 transitions. [2024-11-09 06:29:41,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:29:41,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-09 06:29:41,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:41,073 INFO L225 Difference]: With dead ends: 429 [2024-11-09 06:29:41,073 INFO L226 Difference]: Without dead ends: 265 [2024-11-09 06:29:41,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 06:29:41,074 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 44 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:41,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 568 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:29:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-09 06:29:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 180. [2024-11-09 06:29:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 156 states have internal predecessors, (198), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-09 06:29:41,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 240 transitions. [2024-11-09 06:29:41,097 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 240 transitions. Word has length 99 [2024-11-09 06:29:41,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:41,098 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 240 transitions. [2024-11-09 06:29:41,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 240 transitions. [2024-11-09 06:29:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 06:29:41,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:41,099 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:41,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (12)] Ended with exit code 0 [2024-11-09 06:29:41,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:41,300 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:41,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:41,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1034274392, now seen corresponding path program 1 times [2024-11-09 06:29:41,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:41,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487193458] [2024-11-09 06:29:41,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:41,301 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 06:29:41,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:41,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:41,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (13)] Waiting until timeout for monitored process [2024-11-09 06:29:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:41,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 06:29:41,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:41,602 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:41,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:41,602 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:41,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487193458] [2024-11-09 06:29:41,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487193458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:41,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:41,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:41,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466454403] [2024-11-09 06:29:41,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:41,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:41,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:41,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:41,604 INFO L87 Difference]: Start difference. First operand 180 states and 240 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:42,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:42,131 INFO L93 Difference]: Finished difference Result 441 states and 579 transitions. [2024-11-09 06:29:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:29:42,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-09 06:29:42,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:42,134 INFO L225 Difference]: With dead ends: 441 [2024-11-09 06:29:42,134 INFO L226 Difference]: Without dead ends: 269 [2024-11-09 06:29:42,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:29:42,135 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 46 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:42,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 377 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:29:42,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-09 06:29:42,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 183. [2024-11-09 06:29:42,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 159 states have (on average 1.3018867924528301) internal successors, (207), 160 states have internal predecessors, (207), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-09 06:29:42,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 245 transitions. [2024-11-09 06:29:42,152 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 245 transitions. Word has length 99 [2024-11-09 06:29:42,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:42,153 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 245 transitions. [2024-11-09 06:29:42,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 245 transitions. [2024-11-09 06:29:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 06:29:42,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:42,155 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:42,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (13)] Ended with exit code 0 [2024-11-09 06:29:42,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:42,356 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:42,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:42,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1672345002, now seen corresponding path program 1 times [2024-11-09 06:29:42,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:42,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910306053] [2024-11-09 06:29:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:42,356 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 06:29:42,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:42,363 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:42,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (14)] Waiting until timeout for monitored process [2024-11-09 06:29:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:42,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:29:42,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:42,696 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:42,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:29:42,697 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:42,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910306053] [2024-11-09 06:29:42,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910306053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:29:42,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:29:42,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:29:42,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295855649] [2024-11-09 06:29:42,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:42,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:42,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:42,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:42,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:29:42,698 INFO L87 Difference]: Start difference. First operand 183 states and 245 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:43,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:29:43,174 INFO L93 Difference]: Finished difference Result 444 states and 579 transitions. [2024-11-09 06:29:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:29:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-09 06:29:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:29:43,178 INFO L225 Difference]: With dead ends: 444 [2024-11-09 06:29:43,179 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 06:29:43,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:29:43,180 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 52 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:29:43,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 358 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:29:43,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 06:29:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 258. [2024-11-09 06:29:43,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 222 states have (on average 1.2342342342342343) internal successors, (274), 225 states have internal predecessors, (274), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 06:29:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 328 transitions. [2024-11-09 06:29:43,211 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 328 transitions. Word has length 99 [2024-11-09 06:29:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:29:43,212 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 328 transitions. [2024-11-09 06:29:43,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 328 transitions. [2024-11-09 06:29:43,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 06:29:43,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:29:43,214 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:29:43,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (14)] Ended with exit code 0 [2024-11-09 06:29:43,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:43,414 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:29:43,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:29:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash 707619943, now seen corresponding path program 1 times [2024-11-09 06:29:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:29:43,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134362960] [2024-11-09 06:29:43,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:29:43,415 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 06:29:43,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:29:43,416 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:29:43,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (15)] Waiting until timeout for monitored process [2024-11-09 06:29:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:29:43,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:29:43,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:29:43,840 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 71 treesize of output 70 [2024-11-09 06:29:43,974 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 104 treesize of output 92 [2024-11-09 06:29:44,034 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 19 treesize of output 1 [2024-11-09 06:29:44,245 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 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-09 06:29:44,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:44,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:29:44,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:44,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 34 treesize of output 36 [2024-11-09 06:29:44,837 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:44,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 49 [2024-11-09 06:29:47,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:47,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 88 treesize of output 90 [2024-11-09 06:29:47,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:47,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 104 treesize of output 113 [2024-11-09 06:29:50,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:50,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 134 treesize of output 133 [2024-11-09 06:29:51,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:29:51,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 148 treesize of output 54 [2024-11-09 06:29:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 162 proven. 24 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 06:29:51,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:29:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:29:52,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:29:52,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134362960] [2024-11-09 06:29:52,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134362960] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:29:52,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:29:52,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2024-11-09 06:29:52,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215791687] [2024-11-09 06:29:52,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:29:52,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:29:52,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:29:52,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:29:52,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=285, Unknown=2, NotChecked=0, Total=380 [2024-11-09 06:29:52,447 INFO L87 Difference]: Start difference. First operand 258 states and 328 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:29:55,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:57,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:29:59,778 WARN L539 Checker$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 [] [2024-11-09 06:30:01,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:30:03,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:30:05,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:30:07,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:30:09,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:30:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:10,897 INFO L93 Difference]: Finished difference Result 580 states and 737 transitions. [2024-11-09 06:30:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:30:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2024-11-09 06:30:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:10,903 INFO L225 Difference]: With dead ends: 580 [2024-11-09 06:30:10,904 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 06:30:10,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=98, Invalid=320, Unknown=2, NotChecked=0, Total=420 [2024-11-09 06:30:10,905 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 80 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:10,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 308 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 8 Unknown, 0 Unchecked, 18.3s Time] [2024-11-09 06:30:10,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 06:30:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 289. [2024-11-09 06:30:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 253 states have (on average 1.2213438735177866) internal successors, (309), 256 states have internal predecessors, (309), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 06:30:10,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 363 transitions. [2024-11-09 06:30:10,933 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 363 transitions. Word has length 99 [2024-11-09 06:30:10,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:10,934 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 363 transitions. [2024-11-09 06:30:10,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:30:10,934 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 363 transitions. [2024-11-09 06:30:10,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 06:30:10,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:10,935 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:10,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:30:11,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:30:11,136 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:30:11,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:11,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1597983515, now seen corresponding path program 1 times [2024-11-09 06:30:11,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:30:11,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059781667] [2024-11-09 06:30:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:11,137 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 06:30:11,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:30:11,140 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:30:11,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (16)] Waiting until timeout for monitored process [2024-11-09 06:30:11,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:11,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:30:11,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:30:11,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:30:11,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:30:11,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059781667] [2024-11-09 06:30:11,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059781667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:30:11,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:30:11,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:30:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173715973] [2024-11-09 06:30:11,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:30:11,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:30:11,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:30:11,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:30:11,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:11,411 INFO L87 Difference]: Start difference. First operand 289 states and 363 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:30:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:30:11,510 INFO L93 Difference]: Finished difference Result 581 states and 731 transitions. [2024-11-09 06:30:11,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:30:11,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 100 [2024-11-09 06:30:11,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:30:11,514 INFO L225 Difference]: With dead ends: 581 [2024-11-09 06:30:11,514 INFO L226 Difference]: Without dead ends: 295 [2024-11-09 06:30:11,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:30:11,516 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:30:11,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 522 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:30:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-09 06:30:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 289. [2024-11-09 06:30:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 253 states have (on average 1.2134387351778657) internal successors, (307), 256 states have internal predecessors, (307), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 06:30:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 361 transitions. [2024-11-09 06:30:11,545 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 361 transitions. Word has length 100 [2024-11-09 06:30:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:30:11,546 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 361 transitions. [2024-11-09 06:30:11,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:30:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 361 transitions. [2024-11-09 06:30:11,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 06:30:11,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:30:11,548 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:30:11,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (16)] Ended with exit code 0 [2024-11-09 06:30:11,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:30:11,748 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:30:11,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:30:11,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1072883964, now seen corresponding path program 1 times [2024-11-09 06:30:11,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:30:11,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905227383] [2024-11-09 06:30:11,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:11,750 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 06:30:11,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:30:11,752 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:30:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (17)] Waiting until timeout for monitored process [2024-11-09 06:30:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:12,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:30:12,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:12,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2024-11-09 06:30:13,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:13,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 154 treesize of output 87 [2024-11-09 06:30:13,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:13,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 73 [2024-11-09 06:30:13,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:13,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 117 [2024-11-09 06:30:13,955 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:13,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 156 treesize of output 140 [2024-11-09 06:30:15,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:15,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 318 treesize of output 104 [2024-11-09 06:30:15,995 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:30:15,995 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:30:16,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:30:16,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905227383] [2024-11-09 06:30:16,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905227383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:30:16,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [832827588] [2024-11-09 06:30:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:16,823 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:30:16,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:30:16,824 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:30:16,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-09 06:30:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:18,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 06:30:18,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:18,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-11-09 06:30:27,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:27,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 75 [2024-11-09 06:30:32,057 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:32,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 134 treesize of output 97 [2024-11-09 06:30:38,346 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:38,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 191 treesize of output 137 [2024-11-09 06:30:39,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:39,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 190 treesize of output 166 [2024-11-09 06:30:41,089 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:41,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 350 treesize of output 174 [2024-11-09 06:30:41,130 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:30:41,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:30:41,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [832827588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:30:41,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773224582] [2024-11-09 06:30:41,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:30:41,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:30:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:30:41,382 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:30:41,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 06:30:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:30:42,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:30:42,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:30:43,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:43,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 78 treesize of output 59 [2024-11-09 06:30:43,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:43,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 85 [2024-11-09 06:30:44,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:44,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 177 treesize of output 129 [2024-11-09 06:30:44,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:44,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 209 treesize of output 151 [2024-11-09 06:30:46,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:30:46,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 415 treesize of output 141 [2024-11-09 06:30:46,447 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-09 06:30:46,447 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:30:46,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773224582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:30:46,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:30:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 32 [2024-11-09 06:30:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728331690] [2024-11-09 06:30:46,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:30:46,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 06:30:46,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:30:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 06:30:46,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1216, Unknown=9, NotChecked=0, Total=1406 [2024-11-09 06:30:46,710 INFO L87 Difference]: Start difference. First operand 289 states and 361 transitions. Second operand has 33 states, 33 states have (on average 3.909090909090909) internal successors, (129), 32 states have internal predecessors, (129), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-09 06:30:56,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:31:20,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:31:20,747 INFO L93 Difference]: Finished difference Result 743 states and 911 transitions. [2024-11-09 06:31:20,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-09 06:31:20,749 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.909090909090909) internal successors, (129), 32 states have internal predecessors, (129), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 100 [2024-11-09 06:31:20,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:31:20,753 INFO L225 Difference]: With dead ends: 743 [2024-11-09 06:31:20,753 INFO L226 Difference]: Without dead ends: 741 [2024-11-09 06:31:20,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 343 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 42.3s TimeCoverageRelationStatistics Valid=892, Invalid=4354, Unknown=10, NotChecked=0, Total=5256 [2024-11-09 06:31:20,756 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 1196 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:31:20,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 656 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2024-11-09 06:31:20,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-11-09 06:31:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 624. [2024-11-09 06:31:20,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 553 states have (on average 1.209764918625678) internal successors, (669), 560 states have internal predecessors, (669), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:31:20,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 777 transitions. [2024-11-09 06:31:20,840 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 777 transitions. Word has length 100 [2024-11-09 06:31:20,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:31:20,841 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 777 transitions. [2024-11-09 06:31:20,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.909090909090909) internal successors, (129), 32 states have internal predecessors, (129), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-09 06:31:20,842 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 777 transitions. [2024-11-09 06:31:20,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 06:31:20,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:31:20,843 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:31:20,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (17)] Ended with exit code 0 [2024-11-09 06:31:21,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-09 06:31:21,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-09 06:31:21,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:31:21,445 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:31:21,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:31:21,445 INFO L85 PathProgramCache]: Analyzing trace with hash 228878462, now seen corresponding path program 1 times [2024-11-09 06:31:21,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:31:21,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811375991] [2024-11-09 06:31:21,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:31:21,446 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 06:31:21,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:31:21,447 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:31:21,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (20)] Waiting until timeout for monitored process [2024-11-09 06:31:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:31:21,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:31:21,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:31:21,697 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:31:21,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:31:21,698 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:31:21,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [811375991] [2024-11-09 06:31:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [811375991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:31:21,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:31:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:31:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235968225] [2024-11-09 06:31:21,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:31:21,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:31:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:31:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:31:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:31:21,699 INFO L87 Difference]: Start difference. First operand 624 states and 777 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:31:21,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:31:21,823 INFO L93 Difference]: Finished difference Result 1245 states and 1551 transitions. [2024-11-09 06:31:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:31:21,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-09 06:31:21,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:31:21,827 INFO L225 Difference]: With dead ends: 1245 [2024-11-09 06:31:21,827 INFO L226 Difference]: Without dead ends: 624 [2024-11-09 06:31:21,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:31:21,830 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:31:21,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:31:21,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-09 06:31:21,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2024-11-09 06:31:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 553 states have (on average 1.2079566003616637) internal successors, (668), 560 states have internal predecessors, (668), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:31:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 776 transitions. [2024-11-09 06:31:21,912 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 776 transitions. Word has length 100 [2024-11-09 06:31:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:31:21,913 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 776 transitions. [2024-11-09 06:31:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:31:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 776 transitions. [2024-11-09 06:31:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 06:31:21,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:31:21,915 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:31:21,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (20)] Ended with exit code 0 [2024-11-09 06:31:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:31:22,116 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:31:22,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:31:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2135174559, now seen corresponding path program 1 times [2024-11-09 06:31:22,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:31:22,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641694295] [2024-11-09 06:31:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:31:22,117 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 06:31:22,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:31:22,118 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:31:22,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (21)] Waiting until timeout for monitored process [2024-11-09 06:31:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:31:22,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-09 06:31:22,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:31:22,518 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 71 treesize of output 70 [2024-11-09 06:31:22,736 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 0 case distinctions, treesize of input 123 treesize of output 108 [2024-11-09 06:31:23,537 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 0 case distinctions, treesize of input 119 treesize of output 104 [2024-11-09 06:31:26,069 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 0 case distinctions, treesize of input 227 treesize of output 198 [2024-11-09 06:31:31,379 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 0 case distinctions, treesize of input 324 treesize of output 285 [2024-11-09 06:31:36,028 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 0 case distinctions, treesize of input 312 treesize of output 277 [2024-11-09 06:31:43,908 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 0 case distinctions, treesize of input 301 treesize of output 270 [2024-11-09 06:32:08,084 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 0 case distinctions, treesize of input 329 treesize of output 290 [2024-11-09 06:32:16,559 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 0 case distinctions, treesize of input 368 treesize of output 325 [2024-11-09 06:32:25,347 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 0 case distinctions, treesize of input 351 treesize of output 310 [2024-11-09 06:32:30,988 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 384 treesize of output 344 [2024-11-09 06:32:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 15 proven. 115 refuted. 72 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:32:32,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:32:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:32:37,038 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:32:37,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641694295] [2024-11-09 06:32:37,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641694295] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:32:37,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:32:37,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 26 [2024-11-09 06:32:37,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626064742] [2024-11-09 06:32:37,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:32:37,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:32:37,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:32:37,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:32:37,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=536, Unknown=12, NotChecked=0, Total=650 [2024-11-09 06:32:37,040 INFO L87 Difference]: Start difference. First operand 624 states and 776 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:32:41,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:43,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:47,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:49,102 WARN L539 Checker$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 [] [2024-11-09 06:32:51,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:53,112 WARN L539 Checker$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 [] [2024-11-09 06:32:55,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:57,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:32:59,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:01,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:03,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:05,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:07,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:09,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:33:11,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:33:11,920 INFO L93 Difference]: Finished difference Result 1377 states and 1712 transitions. [2024-11-09 06:33:11,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:33:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2024-11-09 06:33:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:33:11,928 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 06:33:11,928 INFO L226 Difference]: Without dead ends: 756 [2024-11-09 06:33:11,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 64.1s TimeCoverageRelationStatistics Valid=122, Invalid=622, Unknown=12, NotChecked=0, Total=756 [2024-11-09 06:33:11,930 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 112 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:33:11,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 417 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 14 Unknown, 0 Unchecked, 33.8s Time] [2024-11-09 06:33:11,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-09 06:33:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 624. [2024-11-09 06:33:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 553 states have (on average 1.2079566003616637) internal successors, (668), 560 states have internal predecessors, (668), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:33:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 776 transitions. [2024-11-09 06:33:12,016 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 776 transitions. Word has length 101 [2024-11-09 06:33:12,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:33:12,016 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 776 transitions. [2024-11-09 06:33:12,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:33:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 776 transitions. [2024-11-09 06:33:12,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:33:12,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:33:12,018 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:33:12,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:33:12,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:33:12,223 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:33:12,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:33:12,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1140065370, now seen corresponding path program 1 times [2024-11-09 06:33:12,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:33:12,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529121336] [2024-11-09 06:33:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:33:12,224 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 06:33:12,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:33:12,225 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:33:12,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (22)] Waiting until timeout for monitored process [2024-11-09 06:33:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:33:12,658 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:33:12,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:33:12,679 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 72 treesize of output 71 [2024-11-09 06:33:13,025 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 0 case distinctions, treesize of input 107 treesize of output 96 [2024-11-09 06:33:13,883 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 0 case distinctions, treesize of input 103 treesize of output 94 [2024-11-09 06:33:18,186 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 0 case distinctions, treesize of input 190 treesize of output 173 [2024-11-09 06:33:22,626 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 0 case distinctions, treesize of input 271 treesize of output 252 [2024-11-09 06:33:28,943 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 0 case distinctions, treesize of input 272 treesize of output 251 [2024-11-09 06:33:36,874 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 0 case distinctions, treesize of input 261 treesize of output 246 [2024-11-09 06:34:04,724 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 0 case distinctions, treesize of input 289 treesize of output 266 [2024-11-09 06:34:10,191 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 0 case distinctions, treesize of input 311 treesize of output 286 [2024-11-09 06:34:20,120 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 0 case distinctions, treesize of input 316 treesize of output 289 [2024-11-09 06:34:29,406 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 349 treesize of output 323 [2024-11-09 06:34:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 15 proven. 155 refuted. 32 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 06:34:30,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:34:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:34:35,902 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:34:35,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529121336] [2024-11-09 06:34:35,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529121336] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:34:35,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:34:35,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 26 [2024-11-09 06:34:35,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297703300] [2024-11-09 06:34:35,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:34:35,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:34:35,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:34:35,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:34:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=530, Unknown=23, NotChecked=0, Total=650 [2024-11-09 06:34:35,905 INFO L87 Difference]: Start difference. First operand 624 states and 776 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:34:40,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:42,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:45,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:47,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:49,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:34:51,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:54,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:56,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:34:58,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:35:00,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:35:02,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:35:04,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:35:06,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:35:08,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-09 06:35:10,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:10,772 INFO L93 Difference]: Finished difference Result 1377 states and 1712 transitions. [2024-11-09 06:35:10,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:35:10,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-11-09 06:35:10,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:10,780 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 06:35:10,781 INFO L226 Difference]: Without dead ends: 756 [2024-11-09 06:35:10,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 177 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 71.3s TimeCoverageRelationStatistics Valid=119, Invalid=614, Unknown=23, NotChecked=0, Total=756 [2024-11-09 06:35:10,783 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 109 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:10,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 417 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 14 Unknown, 0 Unchecked, 33.7s Time] [2024-11-09 06:35:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-09 06:35:10,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 624. [2024-11-09 06:35:10,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 553 states have (on average 1.2079566003616637) internal successors, (668), 560 states have internal predecessors, (668), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:35:10,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 776 transitions. [2024-11-09 06:35:10,858 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 776 transitions. Word has length 102 [2024-11-09 06:35:10,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:10,859 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 776 transitions. [2024-11-09 06:35:10,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:35:10,859 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 776 transitions. [2024-11-09 06:35:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:35:10,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:10,861 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:10,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (22)] Ended with exit code 0 [2024-11-09 06:35:11,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:11,066 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:35:11,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:11,066 INFO L85 PathProgramCache]: Analyzing trace with hash -548878372, now seen corresponding path program 1 times [2024-11-09 06:35:11,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:35:11,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526745583] [2024-11-09 06:35:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:11,067 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 06:35:11,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:35:11,068 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:11,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (23)] Waiting until timeout for monitored process [2024-11-09 06:35:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:11,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:35:11,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:11,465 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 22 treesize of output 10 [2024-11-09 06:35:11,527 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:35:11,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:35:11,527 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:35:11,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526745583] [2024-11-09 06:35:11,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526745583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:11,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:11,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:35:11,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22301903] [2024-11-09 06:35:11,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:11,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:35:11,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:35:11,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:35:11,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:11,530 INFO L87 Difference]: Start difference. First operand 624 states and 776 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:35:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:12,945 INFO L93 Difference]: Finished difference Result 1253 states and 1565 transitions. [2024-11-09 06:35:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:35:12,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-11-09 06:35:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:12,948 INFO L225 Difference]: With dead ends: 1253 [2024-11-09 06:35:12,949 INFO L226 Difference]: Without dead ends: 632 [2024-11-09 06:35:12,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:35:12,952 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:12,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 06:35:12,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-09 06:35:13,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2024-11-09 06:35:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 561 states have (on average 1.2121212121212122) internal successors, (680), 568 states have internal predecessors, (680), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:35:13,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 788 transitions. [2024-11-09 06:35:13,031 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 788 transitions. Word has length 102 [2024-11-09 06:35:13,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:13,032 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 788 transitions. [2024-11-09 06:35:13,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:35:13,032 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 788 transitions. [2024-11-09 06:35:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:35:13,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:13,034 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:13,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (23)] Ended with exit code 0 [2024-11-09 06:35:13,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:13,234 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:35:13,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash -126176546, now seen corresponding path program 1 times [2024-11-09 06:35:13,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:35:13,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265363272] [2024-11-09 06:35:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:13,235 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 06:35:13,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:35:13,236 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:13,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (24)] Waiting until timeout for monitored process [2024-11-09 06:35:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:13,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:35:13,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:13,524 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:35:13,524 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:35:13,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:35:13,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265363272] [2024-11-09 06:35:13,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265363272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:35:13,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:35:13,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:35:13,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624551735] [2024-11-09 06:35:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:35:13,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:35:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:35:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:35:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:35:13,526 INFO L87 Difference]: Start difference. First operand 632 states and 788 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:35:13,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:35:13,620 INFO L93 Difference]: Finished difference Result 1207 states and 1503 transitions. [2024-11-09 06:35:13,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:35:13,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2024-11-09 06:35:13,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:35:13,623 INFO L225 Difference]: With dead ends: 1207 [2024-11-09 06:35:13,623 INFO L226 Difference]: Without dead ends: 578 [2024-11-09 06:35:13,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:35:13,625 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:35:13,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 211 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:35:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2024-11-09 06:35:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2024-11-09 06:35:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 507 states have (on average 1.1952662721893492) internal successors, (606), 514 states have internal predecessors, (606), 54 states have call successors, (54), 16 states have call predecessors, (54), 16 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:35:13,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 714 transitions. [2024-11-09 06:35:13,702 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 714 transitions. Word has length 102 [2024-11-09 06:35:13,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:35:13,702 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 714 transitions. [2024-11-09 06:35:13,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:35:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 714 transitions. [2024-11-09 06:35:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:35:13,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:35:13,704 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:35:13,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (24)] Forceful destruction successful, exit code 0 [2024-11-09 06:35:13,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:13,905 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:35:13,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:35:13,905 INFO L85 PathProgramCache]: Analyzing trace with hash -388690334, now seen corresponding path program 1 times [2024-11-09 06:35:13,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:35:13,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249245111] [2024-11-09 06:35:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:13,906 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 06:35:13,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:35:13,907 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:35:13,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (25)] Waiting until timeout for monitored process [2024-11-09 06:35:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:14,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:35:14,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:14,988 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 30 treesize of output 1 [2024-11-09 06:35:16,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:16,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 77 [2024-11-09 06:35:16,302 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:16,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 158 treesize of output 103 [2024-11-09 06:35:16,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:16,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 231 treesize of output 147 [2024-11-09 06:35:17,187 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:17,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 263 treesize of output 169 [2024-11-09 06:35:19,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:19,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 469 treesize of output 159 [2024-11-09 06:35:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:35:20,129 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:21,746 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:35:21,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249245111] [2024-11-09 06:35:21,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249245111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:21,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1962254201] [2024-11-09 06:35:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:21,747 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:35:21,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:35:21,748 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:35:21,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-09 06:35:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:23,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:35:23,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:35:24,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-09 06:35:32,746 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:32,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 120 treesize of output 77 [2024-11-09 06:35:33,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:33,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 61 [2024-11-09 06:35:34,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:34,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 113 treesize of output 103 [2024-11-09 06:35:35,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:35,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 94 treesize of output 102 [2024-11-09 06:35:38,516 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:35:38,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 250 treesize of output 106 [2024-11-09 06:35:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:35:38,618 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:35:39,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1962254201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:35:39,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925957872] [2024-11-09 06:35:39,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:35:39,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:35:39,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:39,328 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:35:39,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:35:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:35:53,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 06:35:53,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:36:07,488 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:07,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 50 [2024-11-09 06:36:08,002 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:08,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 72 [2024-11-09 06:36:08,622 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:08,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 114 [2024-11-09 06:36:09,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:09,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 166 treesize of output 134 [2024-11-09 06:36:13,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:36:13,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 322 treesize of output 138 [2024-11-09 06:36:13,741 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-09 06:36:13,741 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:36:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925957872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:36:14,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:36:14,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 20] total 44 [2024-11-09 06:36:14,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872663615] [2024-11-09 06:36:14,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:36:14,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-09 06:36:14,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:36:14,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-09 06:36:14,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=2249, Unknown=5, NotChecked=0, Total=2550 [2024-11-09 06:36:14,568 INFO L87 Difference]: Start difference. First operand 578 states and 714 transitions. Second operand has 45 states, 42 states have (on average 3.2142857142857144) internal successors, (135), 41 states have internal predecessors, (135), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-09 06:36:54,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:37:39,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:39,410 INFO L93 Difference]: Finished difference Result 1450 states and 1760 transitions. [2024-11-09 06:37:39,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-09 06:37:39,412 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 42 states have (on average 3.2142857142857144) internal successors, (135), 41 states have internal predecessors, (135), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) Word has length 102 [2024-11-09 06:37:39,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:39,418 INFO L225 Difference]: With dead ends: 1450 [2024-11-09 06:37:39,418 INFO L226 Difference]: Without dead ends: 1448 [2024-11-09 06:37:39,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 335 SyntacticMatches, 3 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4921 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=2462, Invalid=14040, Unknown=10, NotChecked=0, Total=16512 [2024-11-09 06:37:39,424 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 1468 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 4170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:39,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 1400 Invalid, 4170 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [567 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 40.9s Time] [2024-11-09 06:37:39,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-11-09 06:37:39,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 895. [2024-11-09 06:37:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 788 states have (on average 1.1941624365482233) internal successors, (941), 799 states have internal predecessors, (941), 81 states have call successors, (81), 25 states have call predecessors, (81), 25 states have return successors, (81), 70 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-09 06:37:39,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1103 transitions. [2024-11-09 06:37:39,555 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1103 transitions. Word has length 102 [2024-11-09 06:37:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:39,556 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 1103 transitions. [2024-11-09 06:37:39,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 42 states have (on average 3.2142857142857144) internal successors, (135), 41 states have internal predecessors, (135), 5 states have call successors, (23), 5 states have call predecessors, (23), 6 states have return successors, (24), 5 states have call predecessors, (24), 5 states have call successors, (24) [2024-11-09 06:37:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1103 transitions. [2024-11-09 06:37:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:37:39,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:39,558 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:39,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:39,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:40,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:37:40,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:37:40,159 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:40,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1973142110, now seen corresponding path program 1 times [2024-11-09 06:37:40,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:37:40,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536113645] [2024-11-09 06:37:40,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:40,160 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 06:37:40,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:37:40,161 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:37:40,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (28)] Waiting until timeout for monitored process [2024-11-09 06:37:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:40,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:37:40,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-09 06:37:40,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:40,713 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:37:40,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536113645] [2024-11-09 06:37:40,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536113645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:40,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:40,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:37:40,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254698699] [2024-11-09 06:37:40,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:40,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:37:40,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:37:40,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:37:40,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:37:40,716 INFO L87 Difference]: Start difference. First operand 895 states and 1103 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:37:41,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:41,427 INFO L93 Difference]: Finished difference Result 1562 states and 1917 transitions. [2024-11-09 06:37:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:37:41,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-11-09 06:37:41,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:41,433 INFO L225 Difference]: With dead ends: 1562 [2024-11-09 06:37:41,434 INFO L226 Difference]: Without dead ends: 662 [2024-11-09 06:37:41,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:37:41,436 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 1 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:41,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 446 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:37:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-09 06:37:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 637. [2024-11-09 06:37:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 565 states have (on average 1.191150442477876) internal successors, (673), 572 states have internal predecessors, (673), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:37:41,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 781 transitions. [2024-11-09 06:37:41,540 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 781 transitions. Word has length 102 [2024-11-09 06:37:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:41,540 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 781 transitions. [2024-11-09 06:37:41,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 06:37:41,541 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 781 transitions. [2024-11-09 06:37:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:37:41,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:41,543 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:41,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (28)] Ended with exit code 0 [2024-11-09 06:37:41,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:37:41,744 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:41,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash 915506730, now seen corresponding path program 1 times [2024-11-09 06:37:41,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:37:41,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134966423] [2024-11-09 06:37:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:41,746 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 06:37:41,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:37:41,749 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:37:41,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (29)] Waiting until timeout for monitored process [2024-11-09 06:37:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:42,086 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:37:42,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:37:42,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:37:42,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:37:42,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134966423] [2024-11-09 06:37:42,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134966423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:42,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:42,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:37:42,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122930450] [2024-11-09 06:37:42,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:42,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:37:42,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:37:42,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:37:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:37:42,383 INFO L87 Difference]: Start difference. First operand 637 states and 781 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:37:43,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:43,444 INFO L93 Difference]: Finished difference Result 1407 states and 1720 transitions. [2024-11-09 06:37:43,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:37:43,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-09 06:37:43,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:43,447 INFO L225 Difference]: With dead ends: 1407 [2024-11-09 06:37:43,447 INFO L226 Difference]: Without dead ends: 773 [2024-11-09 06:37:43,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:37:43,449 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 20 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:43,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 300 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:37:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-09 06:37:43,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 719. [2024-11-09 06:37:43,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 647 states have (on average 1.1823802163833075) internal successors, (765), 654 states have internal predecessors, (765), 54 states have call successors, (54), 17 states have call predecessors, (54), 17 states have return successors, (54), 47 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-09 06:37:43,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 873 transitions. [2024-11-09 06:37:43,545 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 873 transitions. Word has length 103 [2024-11-09 06:37:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:43,545 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 873 transitions. [2024-11-09 06:37:43,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:37:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 873 transitions. [2024-11-09 06:37:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:37:43,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:43,547 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:43,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (29)] Ended with exit code 0 [2024-11-09 06:37:43,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:37:43,749 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:43,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:43,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1724853356, now seen corresponding path program 1 times [2024-11-09 06:37:43,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:37:43,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191366207] [2024-11-09 06:37:43,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:43,751 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 06:37:43,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:37:43,754 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:37:43,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (30)] Waiting until timeout for monitored process [2024-11-09 06:37:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:44,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 06:37:44,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:37:44,332 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 19 treesize of output 1 [2024-11-09 06:37:45,009 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 0 case distinctions, treesize of input 33 treesize of output 26 [2024-11-09 06:37:45,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:45,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 48 treesize of output 29 [2024-11-09 06:37:46,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:46,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 48 treesize of output 29 [2024-11-09 06:37:46,755 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:46,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 49 treesize of output 49 [2024-11-09 06:37:49,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:49,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 75 [2024-11-09 06:37:50,039 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:50,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 92 [2024-11-09 06:37:50,854 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:50,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 140 treesize of output 116 [2024-11-09 06:37:51,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:51,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 135 [2024-11-09 06:37:56,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:37:56,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 184 treesize of output 72 [2024-11-09 06:37:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 112 proven. 42 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 06:37:57,323 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:38:01,747 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:38:01,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191366207] [2024-11-09 06:38:01,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191366207] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:38:01,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1653855919] [2024-11-09 06:38:01,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:01,748 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:38:01,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:38:01,749 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:38:01,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 06:38:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:03,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:38:03,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:03,595 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 06:38:05,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 06:38:05,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 06:38:05,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2024-11-09 06:38:06,620 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:06,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2024-11-09 06:38:09,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:09,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 53 [2024-11-09 06:38:10,508 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:10,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 69 [2024-11-09 06:38:12,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:12,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 89 [2024-11-09 06:38:13,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:13,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 113 treesize of output 106 [2024-11-09 06:38:18,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:18,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 164 treesize of output 84 [2024-11-09 06:38:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 146 proven. 24 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 06:38:18,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:38:20,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1653855919] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:38:20,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765017343] [2024-11-09 06:38:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:20,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:38:20,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:38:20,471 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:38:20,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 06:38:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:20,786 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-09 06:38:20,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:38:20,974 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 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-09 06:38:21,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:21,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:38:21,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:21,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:38:22,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:22,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 45 treesize of output 36 [2024-11-09 06:38:27,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:27,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 59 [2024-11-09 06:38:27,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:27,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 76 [2024-11-09 06:38:28,994 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:28,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 126 treesize of output 90 [2024-11-09 06:38:29,750 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:29,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 126 treesize of output 104 [2024-11-09 06:38:32,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:38:32,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 141 treesize of output 53 [2024-11-09 06:38:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 24 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 06:38:32,779 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:38:35,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765017343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:38:35,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:38:35,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 14, 14] total 44 [2024-11-09 06:38:35,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213479573] [2024-11-09 06:38:35,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:38:35,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-09 06:38:35,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:38:35,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-09 06:38:35,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=745, Invalid=3411, Unknown=4, NotChecked=0, Total=4160 [2024-11-09 06:38:35,922 INFO L87 Difference]: Start difference. First operand 719 states and 873 transitions. Second operand has 44 states, 41 states have (on average 3.902439024390244) internal successors, (160), 43 states have internal predecessors, (160), 13 states have call successors, (30), 10 states have call predecessors, (30), 13 states have return successors, (30), 11 states have call predecessors, (30), 13 states have call successors, (30) [2024-11-09 06:38:42,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:44,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:50,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:52,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:38:59,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:01,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:07,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:09,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:11,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:13,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:15,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:17,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:19,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:21,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:23,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:25,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:27,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:29,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:36,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:38,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:40,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:42,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:44,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:46,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:48,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:50,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:52,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:54,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:56,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:39:58,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:00,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:03,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:05,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:07,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:09,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:11,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:13,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:23,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:25,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:27,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:39,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:41,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:40:43,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:00,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:02,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:04,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:06,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:08,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:10,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:12,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:14,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:16,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:18,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:20,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:22,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:24,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:26,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:28,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:30,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:32,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:34,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:46,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:48,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:50,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:52,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:54,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:41:57,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:42:35,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:42:39,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:42:47,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:42:56,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:42:56,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:56,882 INFO L93 Difference]: Finished difference Result 1753 states and 2075 transitions. [2024-11-09 06:42:56,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-09 06:42:56,884 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 41 states have (on average 3.902439024390244) internal successors, (160), 43 states have internal predecessors, (160), 13 states have call successors, (30), 10 states have call predecessors, (30), 13 states have return successors, (30), 11 states have call predecessors, (30), 13 states have call successors, (30) Word has length 103 [2024-11-09 06:42:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:56,887 INFO L225 Difference]: With dead ends: 1753 [2024-11-09 06:42:56,887 INFO L226 Difference]: Without dead ends: 1037 [2024-11-09 06:42:56,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 342 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3196 ImplicationChecksByTransitivity, 119.0s TimeCoverageRelationStatistics Valid=2122, Invalid=8351, Unknown=33, NotChecked=0, Total=10506 [2024-11-09 06:42:56,892 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 724 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 139 mSolverCounterUnsat, 68 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 173.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 68 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 174.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:56,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 873 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 1830 Invalid, 68 Unknown, 0 Unchecked, 174.3s Time] [2024-11-09 06:42:56,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-09 06:42:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 261. [2024-11-09 06:42:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 243 states have (on average 1.1975308641975309) internal successors, (291), 243 states have internal predecessors, (291), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:42:56,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 313 transitions. [2024-11-09 06:42:56,954 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 313 transitions. Word has length 103 [2024-11-09 06:42:56,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:56,959 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 313 transitions. [2024-11-09 06:42:56,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 41 states have (on average 3.902439024390244) internal successors, (160), 43 states have internal predecessors, (160), 13 states have call successors, (30), 10 states have call predecessors, (30), 13 states have return successors, (30), 11 states have call predecessors, (30), 13 states have call successors, (30) [2024-11-09 06:42:56,960 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 313 transitions. [2024-11-09 06:42:56,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:42:56,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:42:56,961 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:42:56,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-09 06:42:57,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (30)] Ended with exit code 0 [2024-11-09 06:42:57,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-09 06:42:57,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:42:57,562 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:42:57,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:42:57,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1321872655, now seen corresponding path program 1 times [2024-11-09 06:42:57,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:42:57,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752973215] [2024-11-09 06:42:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:42:57,563 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 06:42:57,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:42:57,564 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:42:57,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (33)] Waiting until timeout for monitored process [2024-11-09 06:42:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:42:57,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:42:57,986 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:42:58,005 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 19 treesize of output 1 [2024-11-09 06:42:58,313 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 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-09 06:42:58,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:42:58,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:42:59,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:42:59,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 39 treesize of output 26 [2024-11-09 06:42:59,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:42:59,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 45 treesize of output 36 [2024-11-09 06:43:01,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:01,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 59 [2024-11-09 06:43:02,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:02,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 76 [2024-11-09 06:43:03,400 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:03,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 127 treesize of output 100 [2024-11-09 06:43:05,926 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:05,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 142 treesize of output 117 [2024-11-09 06:43:26,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:26,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 199 treesize of output 81 [2024-11-09 06:43:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 130 proven. 24 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-09 06:43:26,844 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:43:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 06:43:30,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:43:30,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752973215] [2024-11-09 06:43:30,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752973215] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:43:30,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:43:30,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 30 [2024-11-09 06:43:30,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969280396] [2024-11-09 06:43:30,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:43:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:43:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:43:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:43:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=657, Unknown=2, NotChecked=0, Total=870 [2024-11-09 06:43:30,225 INFO L87 Difference]: Start difference. First operand 261 states and 313 transitions. Second operand has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:43:36,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:43:36,097 INFO L93 Difference]: Finished difference Result 629 states and 754 transitions. [2024-11-09 06:43:36,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:43:36,098 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 103 [2024-11-09 06:43:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:43:36,100 INFO L225 Difference]: With dead ends: 629 [2024-11-09 06:43:36,100 INFO L226 Difference]: Without dead ends: 371 [2024-11-09 06:43:36,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=382, Invalid=1098, Unknown=2, NotChecked=0, Total=1482 [2024-11-09 06:43:36,101 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:43:36,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 594 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-09 06:43:36,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-09 06:43:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 289. [2024-11-09 06:43:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 271 states have (on average 1.2029520295202951) internal successors, (326), 271 states have internal predecessors, (326), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:43:36,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 348 transitions. [2024-11-09 06:43:36,155 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 348 transitions. Word has length 103 [2024-11-09 06:43:36,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:43:36,156 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 348 transitions. [2024-11-09 06:43:36,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 06:43:36,156 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 348 transitions. [2024-11-09 06:43:36,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-09 06:43:36,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:43:36,159 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:43:36,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (33)] Ended with exit code 0 [2024-11-09 06:43:36,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:43:36,359 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:43:36,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:43:36,360 INFO L85 PathProgramCache]: Analyzing trace with hash 509072602, now seen corresponding path program 1 times [2024-11-09 06:43:36,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:43:36,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409122270] [2024-11-09 06:43:36,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:43:36,360 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 06:43:36,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:43:36,362 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 06:43:36,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/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 (34)] Waiting until timeout for monitored process [2024-11-09 06:43:36,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:43:36,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:43:36,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:43:37,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2024-11-09 06:43:39,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:39,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 163 treesize of output 99 [2024-11-09 06:43:39,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:39,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 124 treesize of output 103 [2024-11-09 06:43:39,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:39,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 139 treesize of output 126 [2024-11-09 06:43:43,139 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:43:43,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 343 treesize of output 123 [2024-11-09 06:43:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 06:43:43,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:43:46,243 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:43:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409122270] [2024-11-09 06:43:46,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409122270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:43:46,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1710839320] [2024-11-09 06:43:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:43:46,243 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:43:46,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:43:46,245 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:43:46,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_298a792b-3f1c-40c9-a775-d24604c0e82a/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process