./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.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_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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_bf19a486-b496-4cc9-b5e9-785d0501e273/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 5ee0f2b669f52dc2ec9ba8ed67fd3d51fd0faec67e2228451bf3cfc69d5760a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:44:39,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:44:39,939 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:44:39,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:44:39,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:44:39,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:44:39,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:44:39,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:44:39,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:44:39,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:44:39,977 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:44:39,978 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:44:39,978 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:44:39,979 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:44:39,979 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:44:39,980 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:44:39,980 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:44:39,981 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:44:39,981 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:44:39,982 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:44:39,982 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:44:39,983 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:44:39,984 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:44:39,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:44:39,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:44:39,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:44:39,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:44:39,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:44:39,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:44:39,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:44:39,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:44:39,992 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:44:39,992 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:44:39,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:44:39,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:44:39,994 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:44:39,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:44:39,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:44:39,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:39,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:44:40,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:44:40,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:44:40,004 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:44:40,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:44:40,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:44:40,005 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:44:40,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:44:40,006 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_bf19a486-b496-4cc9-b5e9-785d0501e273/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee0f2b669f52dc2ec9ba8ed67fd3d51fd0faec67e2228451bf3cfc69d5760a0 [2024-11-09 06:44:40,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:44:40,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:44:40,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:44:40,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:44:40,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:44:40,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i Unable to find full path for "g++" [2024-11-09 06:44:43,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:44:43,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:44:43,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i [2024-11-09 06:44:43,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/11e7e35df/722c4ac791c64f5da1ecd7e6ce825f90/FLAG61f9f5325 [2024-11-09 06:44:43,471 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/11e7e35df/722c4ac791c64f5da1ecd7e6ce825f90 [2024-11-09 06:44:43,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:44:43,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:44:43,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:43,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:44:43,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:44:43,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:43,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3ba109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43, skipping insertion in model container [2024-11-09 06:44:43,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:43,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:44:43,806 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_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i[913,926] [2024-11-09 06:44:43,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:43,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:44:43,922 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_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i[913,926] [2024-11-09 06:44:43,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:43,970 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:44:43,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43 WrapperNode [2024-11-09 06:44:43,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:43,973 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:43,973 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:44:43,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:44:43,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:43,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,023 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2024-11-09 06:44:44,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:44,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:44:44,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:44:44,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:44:44,038 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,078 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:44:44,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:44:44,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:44:44,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:44:44,081 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (1/1) ... [2024-11-09 06:44:44,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:44,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:44:44,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:44:44,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:44:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:44:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:44:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:44:44,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:44:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:44:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:44:44,279 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:44:44,284 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:44:44,623 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:44:44,623 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:44:44,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:44:44,862 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:44:44,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:44:44 BoogieIcfgContainer [2024-11-09 06:44:44,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:44:44,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:44:44,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:44:44,874 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:44:44,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:44:43" (1/3) ... [2024-11-09 06:44:44,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fea9f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:44:44, skipping insertion in model container [2024-11-09 06:44:44,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:43" (2/3) ... [2024-11-09 06:44:44,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fea9f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:44:44, skipping insertion in model container [2024-11-09 06:44:44,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:44:44" (3/3) ... [2024-11-09 06:44:44,879 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-29.i [2024-11-09 06:44:44,905 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:44:44,905 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:44:44,983 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:44:44,992 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;@32f74c52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:44:44,993 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:44:44,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:44:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:44:45,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:44:45,010 INFO L215 NwaCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:44:45,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:44:45,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:44:45,017 INFO L85 PathProgramCache]: Analyzing trace with hash 82783988, now seen corresponding path program 1 times [2024-11-09 06:44:45,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:44:45,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779402402] [2024-11-09 06:44:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:44:45,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:44:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:44:45,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:44:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:44:45,554 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:44:45,557 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:44:45,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:44:45,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:44:45,568 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:44:45,626 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:44:45,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:44:45 BoogieIcfgContainer [2024-11-09 06:44:45,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:44:45,635 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:44:45,635 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:44:45,635 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:44:45,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:44:44" (3/4) ... [2024-11-09 06:44:45,640 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:44:45,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:44:45,644 INFO L158 Benchmark]: Toolchain (without parser) took 2166.03ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 104.1MB in the beginning and 149.9MB in the end (delta: -45.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-11-09 06:44:45,645 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:44:45,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.92ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 89.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:44:45,647 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.29ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 87.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:44:45,648 INFO L158 Benchmark]: Boogie Preprocessor took 54.61ms. Allocated memory is still 138.4MB. Free memory was 87.4MB in the beginning and 86.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:44:45,649 INFO L158 Benchmark]: RCFGBuilder took 784.02ms. Allocated memory is still 138.4MB. Free memory was 85.7MB in the beginning and 64.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 06:44:45,650 INFO L158 Benchmark]: TraceAbstraction took 767.16ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 63.6MB in the beginning and 149.9MB in the end (delta: -86.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:44:45,650 INFO L158 Benchmark]: Witness Printer took 7.18ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:44:45,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 138.4MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.92ms. Allocated memory is still 138.4MB. Free memory was 104.1MB in the beginning and 89.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.29ms. Allocated memory is still 138.4MB. Free memory was 89.9MB in the beginning and 87.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.61ms. Allocated memory is still 138.4MB. Free memory was 87.4MB in the beginning and 86.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 784.02ms. Allocated memory is still 138.4MB. Free memory was 85.7MB in the beginning and 64.3MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 767.16ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 63.6MB in the beginning and 149.9MB in the end (delta: -86.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.18ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. 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 someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of someUnaryFLOAToperation at line 41. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] float var_1_3 = 9.3; [L24] float var_1_4 = 3.4; [L25] unsigned short int var_1_5 = 32; [L26] unsigned short int var_1_9 = 1; [L27] unsigned char var_1_10 = 8; [L28] unsigned char var_1_11 = 5; [L29] unsigned char var_1_12 = 1; [L30] unsigned char var_1_13 = 1; [L31] unsigned char var_1_14 = 8; [L80] isInitial = 1 [L81] FCALL initially() [L82] COND TRUE 1 [L83] FCALL updateLastVariables() [L84] CALL updateVariables() [L62] var_1_3 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=5, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_4=17/5, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8, var_1_11=5, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_4=17/5, var_1_5=32, var_1_9=1] [L64] var_1_4 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=5, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=8, var_1_11=5, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L66] var_1_11 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=8, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_11 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_11 <= 254) VAL [isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L69] var_1_13 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_13 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_13 >= 1) VAL [isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=8, var_1_1=5/2, var_1_5=32, var_1_9=1] [L84] RET updateVariables() [L85] CALL step() [L35] var_1_12 = var_1_13 [L36] var_1_14 = var_1_11 [L37] COND TRUE \read(var_1_12) [L38] var_1_1 = var_1_3 [L44] COND FALSE !((var_1_1 + 8.125) > (var_1_1 * var_1_3)) [L47] var_1_5 = var_1_14 [L49] signed long int stepLocal_0 = 5 * var_1_14; [L50] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) [L57] COND FALSE !(var_1_1 < var_1_3) [L85] RET step() [L86] CALL, EXPR property() [L76-L77] return (((((var_1_12 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_14 + var_1_14)) > (var_1_14)) ? ((var_1_14 + var_1_14)) : (var_1_14))))) : (var_1_5 == ((unsigned short int) var_1_14)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_14 > (5 * var_1_14)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_14)) : 1) : 1) : 1)) && ((var_1_1 < var_1_3) ? (var_1_10 == ((unsigned char) var_1_11)) : 1)) && (var_1_12 == ((unsigned char) var_1_13))) && (var_1_14 == ((unsigned char) var_1_11)) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=256, var_1_1=5/2, var_1_3=5/2, var_1_5=0, var_1_9=1] [L19] reach_error() VAL [isInitial=1, var_1_10=8, var_1_11=256, var_1_12=1, var_1_13=1, var_1_14=256, var_1_1=5/2, var_1_3=5/2, var_1_5=0, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 6, 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=19occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:44:45,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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_bf19a486-b496-4cc9-b5e9-785d0501e273/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 5ee0f2b669f52dc2ec9ba8ed67fd3d51fd0faec67e2228451bf3cfc69d5760a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:44:48,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:44:48,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:44:48,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:44:48,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:44:49,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:44:49,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:44:49,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:44:49,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:44:49,030 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:44:49,031 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:44:49,031 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:44:49,032 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:44:49,033 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:44:49,035 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:44:49,036 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:44:49,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:44:49,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:44:49,038 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:44:49,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:44:49,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:44:49,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:44:49,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:44:49,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:44:49,044 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:44:49,045 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:44:49,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:44:49,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:44:49,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:44:49,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:44:49,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:44:49,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:44:49,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:44:49,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:44:49,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:44:49,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:49,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:44:49,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:44:49,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:44:49,055 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:44:49,056 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:44:49,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:44:49,057 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:44:49,058 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_bf19a486-b496-4cc9-b5e9-785d0501e273/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee0f2b669f52dc2ec9ba8ed67fd3d51fd0faec67e2228451bf3cfc69d5760a0 [2024-11-09 06:44:49,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:44:49,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:44:49,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:44:49,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:44:49,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:44:49,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i Unable to find full path for "g++" [2024-11-09 06:44:52,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:44:52,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:44:52,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i [2024-11-09 06:44:52,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/de2a15a67/f5ee4f3bd5e2460e9ad9d487771c0244/FLAGef974d3e0 [2024-11-09 06:44:53,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/data/de2a15a67/f5ee4f3bd5e2460e9ad9d487771c0244 [2024-11-09 06:44:53,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:44:53,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:44:53,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:53,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:44:53,099 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:44:53,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63935787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53, skipping insertion in model container [2024-11-09 06:44:53,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,135 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:44:53,419 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_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i[913,926] [2024-11-09 06:44:53,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:53,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:44:53,525 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_bf19a486-b496-4cc9-b5e9-785d0501e273/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-29.i[913,926] [2024-11-09 06:44:53,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:44:53,582 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:44:53,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53 WrapperNode [2024-11-09 06:44:53,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:44:53,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:53,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:44:53,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:44:53,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,705 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 77 [2024-11-09 06:44:53,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:44:53,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:44:53,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:44:53,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:44:53,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:44:53,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:44:53,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:44:53,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:44:53,819 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (1/1) ... [2024-11-09 06:44:53,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:44:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:44:53,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:44:53,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:44:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:44:53,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:44:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:44:53,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:44:53,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:44:53,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:44:54,028 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:44:54,030 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:45:00,698 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 06:45:00,699 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:45:00,715 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:45:00,715 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:45:00,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:00 BoogieIcfgContainer [2024-11-09 06:45:00,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:45:00,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:45:00,722 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:45:00,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:45:00,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:44:53" (1/3) ... [2024-11-09 06:45:00,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75293b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:00, skipping insertion in model container [2024-11-09 06:45:00,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:44:53" (2/3) ... [2024-11-09 06:45:00,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75293b17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:45:00, skipping insertion in model container [2024-11-09 06:45:00,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:45:00" (3/3) ... [2024-11-09 06:45:00,730 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-29.i [2024-11-09 06:45:00,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:45:00,753 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:45:00,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:45:00,836 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;@e4d2c30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:45:00,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:45:00,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:00,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:45:00,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:00,855 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 06:45:00,856 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:45:00,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1026569297, now seen corresponding path program 1 times [2024-11-09 06:45:00,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:45:00,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223555946] [2024-11-09 06:45:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:00,882 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 06:45:00,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:45:00,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:00,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:01,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:45:01,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-09 06:45:01,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:01,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:45:01,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [223555946] [2024-11-09 06:45:01,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [223555946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:01,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:01,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:45:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277919325] [2024-11-09 06:45:01,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:01,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:45:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:45:01,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:45:01,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:45:01,454 INFO L87 Difference]: Start difference. First operand has 37 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 29 states have internal predecessors, (40), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:45:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:01,485 INFO L93 Difference]: Finished difference Result 67 states and 104 transitions. [2024-11-09 06:45:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:45:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-11-09 06:45:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:01,499 INFO L225 Difference]: With dead ends: 67 [2024-11-09 06:45:01,499 INFO L226 Difference]: Without dead ends: 33 [2024-11-09 06:45:01,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 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 06:45:01,510 INFO L432 NwaCegarLoop]: 45 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, 45 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 06:45:01,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:45:01,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-09 06:45:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-09 06:45:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2024-11-09 06:45:01,574 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 48 [2024-11-09 06:45:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:01,576 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2024-11-09 06:45:01,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 06:45:01,578 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2024-11-09 06:45:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:45:01,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:01,581 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 06:45:01,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:45:01,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:01,788 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:45:01,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1519278387, now seen corresponding path program 1 times [2024-11-09 06:45:01,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:45:01,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653839010] [2024-11-09 06:45:01,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:01,792 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 06:45:01,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:45:01,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:01,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:02,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:45:02,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:45:02,303 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:02,304 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:45:02,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653839010] [2024-11-09 06:45:02,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653839010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:02,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:45:02,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:45:02,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721558141] [2024-11-09 06:45:02,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:02,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:45:02,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:45:02,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:45:02,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:45:02,310 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:45:04,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:06,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:08,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:10,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:13,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:13,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:13,384 INFO L93 Difference]: Finished difference Result 77 states and 106 transitions. [2024-11-09 06:45:13,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:45:13,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2024-11-09 06:45:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:13,388 INFO L225 Difference]: With dead ends: 77 [2024-11-09 06:45:13,388 INFO L226 Difference]: Without dead ends: 47 [2024-11-09 06:45:13,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 06:45:13,392 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 14 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:13,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 11.0s Time] [2024-11-09 06:45:13,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-09 06:45:13,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 39. [2024-11-09 06:45:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2024-11-09 06:45:13,404 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 48 [2024-11-09 06:45:13,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:13,407 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2024-11-09 06:45:13,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:45:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2024-11-09 06:45:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:45:13,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:13,410 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 06:45:13,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:13,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:13,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:45:13,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1521125429, now seen corresponding path program 1 times [2024-11-09 06:45:13,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:45:13,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913191827] [2024-11-09 06:45:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:13,614 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 06:45:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:45:13,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:13,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:13,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:13,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:13,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:45:16,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:17,032 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:45:17,036 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:45:17,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913191827] [2024-11-09 06:45:17,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [913191827] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1044886435] [2024-11-09 06:45:17,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:17,041 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:45:17,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:45:17,047 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:45:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-09 06:45:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:17,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:45:17,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:23,822 WARN L851 $PredicateComparison]: unable to prove that (and (exists ((currentRoundingMode RoundingMode)) (fp.gt (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode c_~var_1_1~0) ((_ to_fp 11 53) currentRoundingMode (/ 65.0 8.0))) ((_ to_fp 11 53) currentRoundingMode (fp.mul currentRoundingMode c_~var_1_1~0 c_~var_1_3~0)))) (= c_~var_1_1~0 c_~var_1_3~0)) is different from false [2024-11-09 06:45:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 06:45:28,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:45:28,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1044886435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:45:28,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:45:28,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 6] total 13 [2024-11-09 06:45:28,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964754166] [2024-11-09 06:45:28,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:45:28,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:45:28,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:45:28,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:45:28,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=95, Unknown=1, NotChecked=20, Total=156 [2024-11-09 06:45:28,046 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:45:30,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:32,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:34,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:37,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:39,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:45:39,602 INFO L93 Difference]: Finished difference Result 88 states and 123 transitions. [2024-11-09 06:45:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:45:39,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2024-11-09 06:45:39,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:45:39,606 INFO L225 Difference]: With dead ends: 88 [2024-11-09 06:45:39,606 INFO L226 Difference]: Without dead ends: 52 [2024-11-09 06:45:39,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=40, Invalid=95, Unknown=1, NotChecked=20, Total=156 [2024-11-09 06:45:39,611 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 17 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:45:39,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 106 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 5 Unknown, 37 Unchecked, 11.5s Time] [2024-11-09 06:45:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-09 06:45:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 41. [2024-11-09 06:45:39,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:45:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2024-11-09 06:45:39,629 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 48 [2024-11-09 06:45:39,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:45:39,630 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2024-11-09 06:45:39,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 06:45:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-11-09 06:45:39,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:45:39,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:45:39,633 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 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 06:45:39,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-09 06:45:39,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:40,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:40,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:45:40,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:45:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash 711778803, now seen corresponding path program 1 times [2024-11-09 06:45:40,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:45:40,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [160002708] [2024-11-09 06:45:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:40,036 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 06:45:40,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:45:40,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:45:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:40,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:45:40,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:45:42,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:43,314 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:45:43,316 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:45:43,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [160002708] [2024-11-09 06:45:43,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [160002708] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:43,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1533134431] [2024-11-09 06:45:43,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:43,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:45:43,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:45:43,322 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:45:43,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:45:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:44,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 06:45:44,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:45,997 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:45:45,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:45:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1533134431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113042892] [2024-11-09 06:45:46,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:45:46,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:45:46,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:45:46,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:45:46,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:45:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:45:47,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:45:47,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:45:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:45:49,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:45:49,696 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:45:49,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113042892] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:45:49,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:45:49,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 7, 6, 6] total 14 [2024-11-09 06:45:49,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802162609] [2024-11-09 06:45:49,699 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:45:49,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:45:49,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:45:49,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:45:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-09 06:45:49,703 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 06:45:52,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:54,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:56,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:45:58,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:01,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:03,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:05,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:07,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:09,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:11,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:46:12,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:12,101 INFO L93 Difference]: Finished difference Result 102 states and 134 transitions. [2024-11-09 06:46:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:46:12,102 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) Word has length 48 [2024-11-09 06:46:12,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:12,104 INFO L225 Difference]: With dead ends: 102 [2024-11-09 06:46:12,104 INFO L226 Difference]: Without dead ends: 64 [2024-11-09 06:46:12,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2024-11-09 06:46:12,108 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 142 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 17 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:12,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 172 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 183 Invalid, 7 Unknown, 0 Unchecked, 21.6s Time] [2024-11-09 06:46:12,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-09 06:46:12,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 43. [2024-11-09 06:46:12,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 34 states have internal predecessors, (45), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 06:46:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2024-11-09 06:46:12,120 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 48 [2024-11-09 06:46:12,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:12,120 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2024-11-09 06:46:12,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 4 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (13), 2 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-09 06:46:12,121 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2024-11-09 06:46:12,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 06:46:12,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:12,123 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 06:46:12,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:46:12,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:46:12,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-09 06:46:12,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:46:12,724 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:12,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash 110526544, now seen corresponding path program 1 times [2024-11-09 06:46:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:46:12,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240782572] [2024-11-09 06:46:12,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:12,728 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 06:46:12,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:46:12,732 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:46:12,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf19a486-b496-4cc9-b5e9-785d0501e273/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 06:46:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:13,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 06:46:13,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:00,207 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_13~0))) (and (= c_~var_1_1~0 c_~var_1_3~0) (= c_~var_1_14~0 c_~var_1_11~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq c_~var_1_3~0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (fp.geq c_~var_1_3~0 .cse0)) (fp.leq c_~var_1_3~0 (fp.neg .cse0)))) (bvsle .cse1 (_ bv1 32)) (= c_~var_1_12~0 c_~var_1_13~0) (bvsge .cse1 (_ bv1 32)) (fp.gt (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 65.0 8.0))) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode c_~var_1_1~0 c_~var_1_3~0))) (let ((.cse2 ((_ zero_extend 24) c_~var_1_14~0))) (let ((.cse3 (bvmul (_ bv2 32) .cse2))) (or (and (= ((_ extract 15 0) .cse2) c_~var_1_5~0) (not (bvsgt .cse3 .cse2))) (= ((_ extract 15 0) .cse3) c_~var_1_5~0)))))) is different from false [2024-11-09 06:47:02,228 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) c_~var_1_13~0))) (and (= c_~var_1_1~0 c_~var_1_3~0) (= c_~var_1_14~0 c_~var_1_11~0) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (and (fp.leq c_~var_1_3~0 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (fp.geq c_~var_1_3~0 .cse0)) (fp.leq c_~var_1_3~0 (fp.neg .cse0)))) (bvsle .cse1 (_ bv1 32)) (= c_~var_1_12~0 c_~var_1_13~0) (bvsge .cse1 (_ bv1 32)) (fp.gt (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 65.0 8.0))) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode c_~var_1_1~0 c_~var_1_3~0))) (let ((.cse2 ((_ zero_extend 24) c_~var_1_14~0))) (let ((.cse3 (bvmul (_ bv2 32) .cse2))) (or (and (= ((_ extract 15 0) .cse2) c_~var_1_5~0) (not (bvsgt .cse3 .cse2))) (= ((_ extract 15 0) .cse3) c_~var_1_5~0)))))) is different from true [2024-11-09 06:47:42,497 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_13~0))) (and (= c_~var_1_1~0 c_~var_1_3~0) (= c_~var_1_14~0 c_~var_1_11~0) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (fp.geq c_~var_1_3~0 .cse1) (fp.leq c_~var_1_3~0 (fp.neg .cse1)))) (= c_~var_1_12~0 c_~var_1_13~0) (bvsge .cse0 (_ bv1 32)) (fp.gt (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 65.0 8.0))) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode c_~var_1_1~0 c_~var_1_3~0))) (= ((_ extract 15 0) (bvmul (_ bv2 32) ((_ zero_extend 24) c_~var_1_14~0))) c_~var_1_5~0))) is different from false [2024-11-09 06:47:44,519 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_13~0))) (and (= c_~var_1_1~0 c_~var_1_3~0) (= c_~var_1_14~0 c_~var_1_11~0) (bvsle .cse0 (_ bv1 32)) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (or (fp.geq c_~var_1_3~0 .cse1) (fp.leq c_~var_1_3~0 (fp.neg .cse1)))) (= c_~var_1_12~0 c_~var_1_13~0) (bvsge .cse0 (_ bv1 32)) (fp.gt (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode c_~var_1_1~0) ((_ to_fp 11 53) c_currentRoundingMode (/ 65.0 8.0))) ((_ to_fp 11 53) c_currentRoundingMode (fp.mul c_currentRoundingMode c_~var_1_1~0 c_~var_1_3~0))) (= ((_ extract 15 0) (bvmul (_ bv2 32) ((_ zero_extend 24) c_~var_1_14~0))) c_~var_1_5~0))) is different from true