./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:54:57,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:54:57,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:54:57,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:54:57,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:54:57,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:54:57,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:54:57,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:54:57,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:54:57,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:54:57,728 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:54:57,729 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:54:57,729 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:54:57,730 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:54:57,730 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:54:57,731 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:54:57,731 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:54:57,732 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:54:57,732 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:54:57,732 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:54:57,733 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:54:57,739 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:54:57,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:54:57,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:54:57,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:54:57,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:54:57,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:54:57,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:54:57,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:54:57,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:54:57,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:54:57,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:54:57,766 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:54:57,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:54:57,767 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:54:57,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:54:57,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:54:57,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:54:57,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:54:57,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:54:57,773 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:54:57,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:54:57,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:54:57,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:54:57,775 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:54:57,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:54:57,776 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:54:57,777 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:54:57,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:54:57,777 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_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2024-11-09 06:54:58,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:54:58,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:54:58,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:54:58,164 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:54:58,164 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:54:58,166 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c Unable to find full path for "g++" [2024-11-09 06:55:00,818 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:55:01,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:55:01,068 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-09 06:55:01,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/1e5afcdb5/9c0d2cbde1d04743a8a9dc917dc86c62/FLAGe6ab855f2 [2024-11-09 06:55:01,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/1e5afcdb5/9c0d2cbde1d04743a8a9dc917dc86c62 [2024-11-09 06:55:01,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:55:01,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:55:01,408 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:01,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:55:01,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:55:01,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e067b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01, skipping insertion in model container [2024-11-09 06:55:01,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,458 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:55:01,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:01,774 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:55:01,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:55:01,864 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:55:01,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01 WrapperNode [2024-11-09 06:55:01,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:55:01,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:01,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:55:01,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:55:01,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,941 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2024-11-09 06:55:01,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:55:01,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:55:01,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:55:01,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:55:01,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:55:01,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:55:01,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:55:01,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:55:01,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (1/1) ... [2024-11-09 06:55:01,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:55:02,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:02,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:55:02,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:55:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:55:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:55:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-09 06:55:02,077 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-09 06:55:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:55:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:55:02,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:55:02,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:55:02,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:55:02,164 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:55:02,792 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-09 06:55:02,792 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:55:03,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:55:03,167 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:55:03,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:03 BoogieIcfgContainer [2024-11-09 06:55:03,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:55:03,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:55:03,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:55:03,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:55:03,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:55:01" (1/3) ... [2024-11-09 06:55:03,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d575e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:03, skipping insertion in model container [2024-11-09 06:55:03,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:55:01" (2/3) ... [2024-11-09 06:55:03,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d575e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:55:03, skipping insertion in model container [2024-11-09 06:55:03,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:03" (3/3) ... [2024-11-09 06:55:03,189 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2024-11-09 06:55:03,214 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:55:03,214 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 06:55:03,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:55:03,306 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;@30c7bc8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:55:03,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 06:55:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 76 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:55:03,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:55:03,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:03,322 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:03,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:03,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -544041276, now seen corresponding path program 1 times [2024-11-09 06:55:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:03,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642617562] [2024-11-09 06:55:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:03,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:03,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:03,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642617562] [2024-11-09 06:55:03,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642617562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:03,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:03,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:55:03,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583062000] [2024-11-09 06:55:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:03,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:55:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:55:03,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:55:03,621 INFO L87 Difference]: Start difference. First operand has 83 states, 51 states have (on average 1.7647058823529411) internal successors, (90), 76 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:03,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:03,730 INFO L93 Difference]: Finished difference Result 160 states and 201 transitions. [2024-11-09 06:55:03,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:55:03,737 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:55:03,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:03,749 INFO L225 Difference]: With dead ends: 160 [2024-11-09 06:55:03,749 INFO L226 Difference]: Without dead ends: 72 [2024-11-09 06:55:03,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:55:03,763 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:03,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:03,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-09 06:55:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-09 06:55:03,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 47 states have (on average 1.553191489361702) internal successors, (73), 66 states have internal predecessors, (73), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2024-11-09 06:55:03,833 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 8 [2024-11-09 06:55:03,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:03,835 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2024-11-09 06:55:03,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2024-11-09 06:55:03,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:55:03,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:03,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:03,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:55:03,840 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:03,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:03,842 INFO L85 PathProgramCache]: Analyzing trace with hash -545228259, now seen corresponding path program 1 times [2024-11-09 06:55:03,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:03,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963734706] [2024-11-09 06:55:03,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:03,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:04,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:04,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:04,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963734706] [2024-11-09 06:55:04,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963734706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:04,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:04,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:04,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078958785] [2024-11-09 06:55:04,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:04,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:04,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:04,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:04,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:04,049 INFO L87 Difference]: Start difference. First operand 72 states and 81 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:04,347 INFO L93 Difference]: Finished difference Result 189 states and 226 transitions. [2024-11-09 06:55:04,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:04,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:55:04,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:04,354 INFO L225 Difference]: With dead ends: 189 [2024-11-09 06:55:04,354 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 06:55:04,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:04,359 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 66 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:04,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 174 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 06:55:04,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2024-11-09 06:55:04,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 82 states have (on average 1.5121951219512195) internal successors, (124), 101 states have internal predecessors, (124), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:04,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 132 transitions. [2024-11-09 06:55:04,391 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 132 transitions. Word has length 8 [2024-11-09 06:55:04,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:04,391 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 132 transitions. [2024-11-09 06:55:04,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 132 transitions. [2024-11-09 06:55:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:55:04,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:04,393 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:04,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:55:04,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:04,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:04,395 INFO L85 PathProgramCache]: Analyzing trace with hash -664360446, now seen corresponding path program 1 times [2024-11-09 06:55:04,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:04,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675972878] [2024-11-09 06:55:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:04,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:04,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675972878] [2024-11-09 06:55:04,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675972878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:04,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:04,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427828924] [2024-11-09 06:55:04,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:04,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:04,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:04,639 INFO L87 Difference]: Start difference. First operand 108 states and 132 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:04,882 INFO L93 Difference]: Finished difference Result 235 states and 286 transitions. [2024-11-09 06:55:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:55:04,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 06:55:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:04,884 INFO L225 Difference]: With dead ends: 235 [2024-11-09 06:55:04,884 INFO L226 Difference]: Without dead ends: 129 [2024-11-09 06:55:04,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:04,887 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 104 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:04,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 176 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-09 06:55:04,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2024-11-09 06:55:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.4725274725274726) internal successors, (134), 110 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:04,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-11-09 06:55:04,902 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 12 [2024-11-09 06:55:04,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:04,902 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-09 06:55:04,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2024-11-09 06:55:04,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 06:55:04,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:04,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:04,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:55:04,905 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:04,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:04,905 INFO L85 PathProgramCache]: Analyzing trace with hash -663288422, now seen corresponding path program 1 times [2024-11-09 06:55:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:04,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042307727] [2024-11-09 06:55:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:04,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042307727] [2024-11-09 06:55:05,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042307727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999407517] [2024-11-09 06:55:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:05,016 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,140 INFO L93 Difference]: Finished difference Result 236 states and 286 transitions. [2024-11-09 06:55:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:05,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 06:55:05,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,144 INFO L225 Difference]: With dead ends: 236 [2024-11-09 06:55:05,144 INFO L226 Difference]: Without dead ends: 121 [2024-11-09 06:55:05,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:05,151 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 3 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 198 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-09 06:55:05,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-09 06:55:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 94 states have (on average 1.4574468085106382) internal successors, (137), 113 states have internal predecessors, (137), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:05,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 145 transitions. [2024-11-09 06:55:05,201 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 145 transitions. Word has length 13 [2024-11-09 06:55:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:05,201 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 145 transitions. [2024-11-09 06:55:05,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:55:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 145 transitions. [2024-11-09 06:55:05,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 06:55:05,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:05,203 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:05,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:55:05,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:05,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:05,211 INFO L85 PathProgramCache]: Analyzing trace with hash -832731329, now seen corresponding path program 1 times [2024-11-09 06:55:05,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:05,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733298192] [2024-11-09 06:55:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:05,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:55:05,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733298192] [2024-11-09 06:55:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733298192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:55:05,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480093038] [2024-11-09 06:55:05,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:55:05,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:55:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:55:05,336 INFO L87 Difference]: Start difference. First operand 121 states and 145 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,415 INFO L93 Difference]: Finished difference Result 121 states and 145 transitions. [2024-11-09 06:55:05,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:55:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-09 06:55:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,417 INFO L225 Difference]: With dead ends: 121 [2024-11-09 06:55:05,417 INFO L226 Difference]: Without dead ends: 120 [2024-11-09 06:55:05,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 06:55:05,419 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 120 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-09 06:55:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 119. [2024-11-09 06:55:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 111 states have internal predecessors, (134), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2024-11-09 06:55:05,441 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 20 [2024-11-09 06:55:05,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:05,445 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2024-11-09 06:55:05,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2024-11-09 06:55:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:55:05,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:05,449 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:05,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:55:05,449 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:05,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:05,450 INFO L85 PathProgramCache]: Analyzing trace with hash -522431958, now seen corresponding path program 1 times [2024-11-09 06:55:05,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:05,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548488319] [2024-11-09 06:55:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:05,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,567 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548488319] [2024-11-09 06:55:05,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548488319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:05,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301044910] [2024-11-09 06:55:05,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:05,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:05,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:05,575 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:05,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:05,687 INFO L93 Difference]: Finished difference Result 200 states and 226 transitions. [2024-11-09 06:55:05,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:05,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-09 06:55:05,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:05,690 INFO L225 Difference]: With dead ends: 200 [2024-11-09 06:55:05,691 INFO L226 Difference]: Without dead ends: 109 [2024-11-09 06:55:05,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:05,695 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 31 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:05,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 194 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-09 06:55:05,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2024-11-09 06:55:05,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 95 states have internal predecessors, (112), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:05,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 120 transitions. [2024-11-09 06:55:05,714 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 120 transitions. Word has length 19 [2024-11-09 06:55:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:05,714 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 120 transitions. [2024-11-09 06:55:05,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:05,715 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 120 transitions. [2024-11-09 06:55:05,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 06:55:05,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:05,720 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:05,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:55:05,720 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:05,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:05,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1020519229, now seen corresponding path program 1 times [2024-11-09 06:55:05,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:05,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511462326] [2024-11-09 06:55:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:05,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:05,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:55:05,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:05,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511462326] [2024-11-09 06:55:05,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511462326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:05,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:05,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892810051] [2024-11-09 06:55:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:05,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:05,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:05,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:05,871 INFO L87 Difference]: Start difference. First operand 103 states and 120 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,051 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2024-11-09 06:55:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:55:06,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-09 06:55:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,053 INFO L225 Difference]: With dead ends: 109 [2024-11-09 06:55:06,054 INFO L226 Difference]: Without dead ends: 106 [2024-11-09 06:55:06,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:55:06,055 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 35 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 222 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:06,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-09 06:55:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 103. [2024-11-09 06:55:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 95 states have internal predecessors, (108), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 116 transitions. [2024-11-09 06:55:06,074 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 116 transitions. Word has length 19 [2024-11-09 06:55:06,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,074 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 116 transitions. [2024-11-09 06:55:06,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 116 transitions. [2024-11-09 06:55:06,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:55:06,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,077 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:55:06,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:06,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash -23929787, now seen corresponding path program 1 times [2024-11-09 06:55:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842150852] [2024-11-09 06:55:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,164 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:55:06,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842150852] [2024-11-09 06:55:06,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842150852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:06,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:55:06,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803106494] [2024-11-09 06:55:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:55:06,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:55:06,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:06,169 INFO L87 Difference]: Start difference. First operand 103 states and 116 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:06,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,285 INFO L93 Difference]: Finished difference Result 111 states and 126 transitions. [2024-11-09 06:55:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:55:06,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 06:55:06,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,288 INFO L225 Difference]: With dead ends: 111 [2024-11-09 06:55:06,289 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 06:55:06,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:55:06,290 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 6 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 164 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:06,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 06:55:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 101. [2024-11-09 06:55:06,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 76 states have (on average 1.368421052631579) internal successors, (104), 93 states have internal predecessors, (104), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:06,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2024-11-09 06:55:06,306 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 23 [2024-11-09 06:55:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,309 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2024-11-09 06:55:06,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:55:06,310 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2024-11-09 06:55:06,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:55:06,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,311 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 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 06:55:06,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:55:06,312 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:06,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,316 INFO L85 PathProgramCache]: Analyzing trace with hash 134803635, now seen corresponding path program 1 times [2024-11-09 06:55:06,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707572527] [2024-11-09 06:55:06,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:55:06,455 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707572527] [2024-11-09 06:55:06,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707572527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:06,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:06,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328419160] [2024-11-09 06:55:06,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:06,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:06,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:06,462 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:06,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,658 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2024-11-09 06:55:06,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-09 06:55:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,665 INFO L225 Difference]: With dead ends: 137 [2024-11-09 06:55:06,665 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 06:55:06,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:06,667 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 83 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 182 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:06,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 06:55:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 122. [2024-11-09 06:55:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 96 states have (on average 1.3958333333333333) internal successors, (134), 113 states have internal predecessors, (134), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:06,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2024-11-09 06:55:06,683 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 33 [2024-11-09 06:55:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,684 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2024-11-09 06:55:06,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2024-11-09 06:55:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:55:06,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,685 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:55:06,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:06,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash 107130584, now seen corresponding path program 1 times [2024-11-09 06:55:06,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490606459] [2024-11-09 06:55:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 06:55:06,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:06,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490606459] [2024-11-09 06:55:06,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490606459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:06,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:06,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:55:06,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650729788] [2024-11-09 06:55:06,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:06,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:06,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:06,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:06,810 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:06,968 INFO L93 Difference]: Finished difference Result 137 states and 157 transitions. [2024-11-09 06:55:06,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:06,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-09 06:55:06,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:06,970 INFO L225 Difference]: With dead ends: 137 [2024-11-09 06:55:06,970 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 06:55:06,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:06,971 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 92 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:06,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 177 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:55:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 06:55:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 126. [2024-11-09 06:55:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 117 states have internal predecessors, (137), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 145 transitions. [2024-11-09 06:55:06,985 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 145 transitions. Word has length 33 [2024-11-09 06:55:06,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:06,988 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 145 transitions. [2024-11-09 06:55:06,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:06,988 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 145 transitions. [2024-11-09 06:55:06,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 06:55:06,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:06,990 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:06,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:55:06,990 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:06,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1231623223, now seen corresponding path program 1 times [2024-11-09 06:55:06,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:06,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546767366] [2024-11-09 06:55:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:06,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:07,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:07,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546767366] [2024-11-09 06:55:07,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546767366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:55:07,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:55:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:55:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114988864] [2024-11-09 06:55:07,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:55:07,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:55:07,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:07,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:55:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:55:07,310 INFO L87 Difference]: Start difference. First operand 126 states and 145 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:07,500 INFO L93 Difference]: Finished difference Result 292 states and 337 transitions. [2024-11-09 06:55:07,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:55:07,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2024-11-09 06:55:07,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:07,502 INFO L225 Difference]: With dead ends: 292 [2024-11-09 06:55:07,502 INFO L226 Difference]: Without dead ends: 189 [2024-11-09 06:55:07,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:55:07,504 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 40 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:07,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 202 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:55:07,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-09 06:55:07,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 126. [2024-11-09 06:55:07,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 117 states have internal predecessors, (136), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:07,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2024-11-09 06:55:07,519 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 37 [2024-11-09 06:55:07,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:07,521 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2024-11-09 06:55:07,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:55:07,521 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2024-11-09 06:55:07,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:55:07,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:07,523 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:07,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:55:07,523 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:07,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:07,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1123357394, now seen corresponding path program 1 times [2024-11-09 06:55:07,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:07,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845077011] [2024-11-09 06:55:07,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:07,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:07,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:07,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845077011] [2024-11-09 06:55:07,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845077011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436321094] [2024-11-09 06:55:07,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:07,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:07,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:07,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:07,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:55:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:07,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:55:07,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:07,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:07,942 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:08,187 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:08,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436321094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:08,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1855083186] [2024-11-09 06:55:08,218 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:55:08,218 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:55:08,222 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:55:08,229 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:55:08,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:55:08,722 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 06:55:09,009 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:10,410 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3977#(and (<= |base2flt_#in~e| 127) (<= 1 |#StackHeapBarrier|) (<= (mod base2flt_~m 4294967296) (mod |base2flt_#in~m| 4294967296)) (<= 0 |base2flt_#in~e|) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (<= (mod |base2flt_#in~m| 4294967296) 33554431))' at error location [2024-11-09 06:55:10,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:10,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:10,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2024-11-09 06:55:10,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941994639] [2024-11-09 06:55:10,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:10,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 06:55:10,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 06:55:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:55:10,414 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:10,922 INFO L93 Difference]: Finished difference Result 426 states and 519 transitions. [2024-11-09 06:55:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 06:55:10,923 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 38 [2024-11-09 06:55:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:10,927 INFO L225 Difference]: With dead ends: 426 [2024-11-09 06:55:10,930 INFO L226 Difference]: Without dead ends: 327 [2024-11-09 06:55:10,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:55:10,932 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 93 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:10,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 303 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 06:55:10,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2024-11-09 06:55:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 146. [2024-11-09 06:55:10,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.322314049586777) internal successors, (160), 137 states have internal predecessors, (160), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 168 transitions. [2024-11-09 06:55:10,951 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 168 transitions. Word has length 38 [2024-11-09 06:55:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:10,952 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 168 transitions. [2024-11-09 06:55:10,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 168 transitions. [2024-11-09 06:55:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 06:55:10,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:10,954 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:10,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:55:11,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 06:55:11,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:11,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1728744316, now seen corresponding path program 1 times [2024-11-09 06:55:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530937997] [2024-11-09 06:55:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:11,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530937997] [2024-11-09 06:55:11,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530937997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624975009] [2024-11-09 06:55:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:11,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:11,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:55:11,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:11,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:55:11,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:11,892 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:12,359 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:12,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624975009] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:12,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1234543650] [2024-11-09 06:55:12,363 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:55:12,364 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:55:12,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:55:12,364 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:55:12,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:55:14,520 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 46 for LOIs [2024-11-09 06:55:14,954 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:19,247 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4914#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (<= 1 |#StackHeapBarrier|) (or (and (exists ((v_base2flt_~m_105 Int)) (= 0 (mod v_base2flt_~m_105 4294967296))) (= base2flt_~m 0)) (exists ((v_base2flt_~m_105 Int)) (and (or (and (<= (mod base2flt_~m 4294967296) 4278190079) (<= (mod base2flt_~m 4294967296) (mod v_base2flt_~m_105 4294967296)) (not (= 4278190079 (mod v_base2flt_~m_105 4294967296)))) (and (= v_base2flt_~m_105 base2flt_~m) (= 4278190079 (mod v_base2flt_~m_105 4294967296)))) (not (= 0 (mod v_base2flt_~m_105 4294967296)))))))' at error location [2024-11-09 06:55:19,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:19,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:19,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 18 [2024-11-09 06:55:19,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340033419] [2024-11-09 06:55:19,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:19,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 06:55:19,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:19,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 06:55:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:55:19,250 INFO L87 Difference]: Start difference. First operand 146 states and 168 transitions. Second operand has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:55:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:20,493 INFO L93 Difference]: Finished difference Result 391 states and 454 transitions. [2024-11-09 06:55:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-09 06:55:20,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-09 06:55:20,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:20,496 INFO L225 Difference]: With dead ends: 391 [2024-11-09 06:55:20,496 INFO L226 Difference]: Without dead ends: 280 [2024-11-09 06:55:20,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:55:20,498 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 158 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:20,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 369 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:55:20,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-09 06:55:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 146. [2024-11-09 06:55:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2892561983471074) internal successors, (156), 137 states have internal predecessors, (156), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2024-11-09 06:55:20,515 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 42 [2024-11-09 06:55:20,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:20,516 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2024-11-09 06:55:20,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.888888888888889) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:55:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2024-11-09 06:55:20,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 06:55:20,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:20,517 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:20,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:55:20,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:20,718 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:20,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash -129797486, now seen corresponding path program 2 times [2024-11-09 06:55:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:20,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127466106] [2024-11-09 06:55:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:20,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:21,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127466106] [2024-11-09 06:55:21,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127466106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781530266] [2024-11-09 06:55:21,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:55:21,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:21,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:21,017 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:21,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:55:21,098 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 06:55:21,098 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:55:21,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:55:21,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:21,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:21,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781530266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:21,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2051868285] [2024-11-09 06:55:21,721 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:55:21,721 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:55:21,721 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:55:21,721 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:55:21,721 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:55:21,913 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 06:55:22,055 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:23,036 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5940#(and (<= |base2flt_#in~e| 127) (<= 1 |#StackHeapBarrier|) (<= (mod base2flt_~m 4294967296) (mod |base2flt_#in~m| 4294967296)) (<= 0 |base2flt_#in~e|) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (<= (mod |base2flt_#in~m| 4294967296) 33554431))' at error location [2024-11-09 06:55:23,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:23,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:23,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-09 06:55:23,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379308767] [2024-11-09 06:55:23,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:23,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:55:23,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:23,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:55:23,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1330, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 06:55:23,040 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:23,757 INFO L93 Difference]: Finished difference Result 666 states and 831 transitions. [2024-11-09 06:55:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:55:23,757 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2024-11-09 06:55:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:23,762 INFO L225 Difference]: With dead ends: 666 [2024-11-09 06:55:23,762 INFO L226 Difference]: Without dead ends: 567 [2024-11-09 06:55:23,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 139 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=420, Invalid=1386, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 06:55:23,764 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 268 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:23,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 443 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 06:55:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-09 06:55:23,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 186. [2024-11-09 06:55:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.2670807453416149) internal successors, (204), 177 states have internal predecessors, (204), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 212 transitions. [2024-11-09 06:55:23,791 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 212 transitions. Word has length 58 [2024-11-09 06:55:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:23,792 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 212 transitions. [2024-11-09 06:55:23,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 26 states have internal predecessors, (125), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:23,792 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 212 transitions. [2024-11-09 06:55:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 06:55:23,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:23,794 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:23,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:55:23,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:23,996 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:23,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:23,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1015936068, now seen corresponding path program 2 times [2024-11-09 06:55:23,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:23,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057095123] [2024-11-09 06:55:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:23,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:24,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:24,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057095123] [2024-11-09 06:55:24,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057095123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:24,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142777119] [2024-11-09 06:55:24,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:55:24,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:24,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:24,496 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:24,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:55:24,761 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-09 06:55:24,762 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:55:24,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 06:55:24,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:26,139 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:29,083 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:29,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142777119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:29,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [483631392] [2024-11-09 06:55:29,087 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:55:29,087 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:55:29,088 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:55:29,088 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:55:29,088 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:55:30,271 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 46 for LOIs [2024-11-09 06:55:30,546 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:34,399 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7329#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (<= 1 |#StackHeapBarrier|) (or (exists ((v_base2flt_~m_180 Int)) (and (not (= (mod v_base2flt_~m_180 4294967296) 0)) (or (and (not (= 4278190079 (mod v_base2flt_~m_180 4294967296))) (<= (mod base2flt_~m 4294967296) 4278190079) (<= (mod base2flt_~m 4294967296) (mod v_base2flt_~m_180 4294967296))) (and (= v_base2flt_~m_180 base2flt_~m) (= 4278190079 (mod v_base2flt_~m_180 4294967296)))))) (and (= base2flt_~m 0) (exists ((v_base2flt_~m_180 Int)) (= (mod v_base2flt_~m_180 4294967296) 0)))))' at error location [2024-11-09 06:55:34,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:34,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:34,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17, 16] total 38 [2024-11-09 06:55:34,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87661774] [2024-11-09 06:55:34,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:34,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-09 06:55:34,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:34,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-09 06:55:34,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=522, Invalid=2028, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:55:34,404 INFO L87 Difference]: Start difference. First operand 186 states and 212 transitions. Second operand has 38 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 38 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:55:40,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:55:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:44,597 INFO L93 Difference]: Finished difference Result 559 states and 658 transitions. [2024-11-09 06:55:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-09 06:55:44,598 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 38 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2024-11-09 06:55:44,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:44,601 INFO L225 Difference]: With dead ends: 559 [2024-11-09 06:55:44,601 INFO L226 Difference]: Without dead ends: 448 [2024-11-09 06:55:44,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 150 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1715 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1005, Invalid=3285, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:55:44,604 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 405 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:44,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1159 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 990 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 06:55:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-09 06:55:44,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 186. [2024-11-09 06:55:44,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 161 states have (on average 1.2173913043478262) internal successors, (196), 177 states have internal predecessors, (196), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 204 transitions. [2024-11-09 06:55:44,634 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 204 transitions. Word has length 62 [2024-11-09 06:55:44,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:44,635 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 204 transitions. [2024-11-09 06:55:44,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.4210526315789473) internal successors, (130), 38 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:55:44,635 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 204 transitions. [2024-11-09 06:55:44,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 06:55:44,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:44,637 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:44,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:55:44,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:44,838 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:44,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:44,838 INFO L85 PathProgramCache]: Analyzing trace with hash -406318574, now seen corresponding path program 3 times [2024-11-09 06:55:44,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:44,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450094865] [2024-11-09 06:55:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:44,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:45,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:45,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450094865] [2024-11-09 06:55:45,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450094865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:45,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956708830] [2024-11-09 06:55:45,664 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:55:45,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:45,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:45,666 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:45,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:55:45,765 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:55:45,765 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:55:45,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:55:45,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:46,286 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:46,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:47,587 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 8 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:47,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956708830] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:55:47,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1553512407] [2024-11-09 06:55:47,590 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:55:47,590 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:55:47,591 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:55:47,591 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:55:47,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:55:47,776 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 11 for LOIs [2024-11-09 06:55:47,913 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:55:49,289 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8896#(and (<= |base2flt_#in~e| 127) (<= 1 |#StackHeapBarrier|) (<= (mod base2flt_~m 4294967296) (mod |base2flt_#in~m| 4294967296)) (<= 0 |base2flt_#in~e|) (<= 16777216 (mod |base2flt_#in~m| 4294967296)) (<= (mod |base2flt_#in~m| 4294967296) 33554431))' at error location [2024-11-09 06:55:49,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:55:49,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:55:49,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2024-11-09 06:55:49,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038088801] [2024-11-09 06:55:49,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:55:49,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 06:55:49,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:55:49,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 06:55:49,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=3162, Unknown=0, NotChecked=0, Total=4290 [2024-11-09 06:55:49,295 INFO L87 Difference]: Start difference. First operand 186 states and 204 transitions. Second operand has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:55:50,710 INFO L93 Difference]: Finished difference Result 1146 states and 1455 transitions. [2024-11-09 06:55:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-09 06:55:50,711 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 98 [2024-11-09 06:55:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:55:50,715 INFO L225 Difference]: With dead ends: 1146 [2024-11-09 06:55:50,716 INFO L226 Difference]: Without dead ends: 1047 [2024-11-09 06:55:50,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 243 SyntacticMatches, 4 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2745 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1180, Invalid=3242, Unknown=0, NotChecked=0, Total=4422 [2024-11-09 06:55:50,718 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 883 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:55:50,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 431 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 06:55:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-09 06:55:50,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 266. [2024-11-09 06:55:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 241 states have (on average 1.2116182572614107) internal successors, (292), 257 states have internal predecessors, (292), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:55:50,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 300 transitions. [2024-11-09 06:55:50,751 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 300 transitions. Word has length 98 [2024-11-09 06:55:50,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:55:50,752 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 300 transitions. [2024-11-09 06:55:50,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.9) internal successors, (245), 50 states have internal predecessors, (245), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:55:50,752 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 300 transitions. [2024-11-09 06:55:50,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 06:55:50,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:55:50,753 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:55:50,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 06:55:50,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:50,954 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:55:50,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:55:50,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1850289212, now seen corresponding path program 3 times [2024-11-09 06:55:50,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:55:50,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740976289] [2024-11-09 06:55:50,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:50,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:55:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:52,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:55:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740976289] [2024-11-09 06:55:52,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740976289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:52,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763533672] [2024-11-09 06:55:52,102 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:55:52,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:52,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:52,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:52,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:55:52,519 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:55:52,519 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:55:52,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 06:55:52,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:55:57,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 14 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:56:14,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763533672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:14,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1367145568] [2024-11-09 06:56:14,812 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 06:56:14,813 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:56:14,813 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:56:14,813 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:56:14,813 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:56:15,581 INFO L197 IcfgInterpreter]: Interpreting procedure base2flt with input of size 46 for LOIs [2024-11-09 06:56:15,810 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:56:21,588 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11188#(and (<= |base2flt_#in~e| 127) (<= 0 (+ 128 |base2flt_#in~e|)) (or (and (= base2flt_~m 0) (exists ((v_base2flt_~m_295 Int)) (= (mod v_base2flt_~m_295 4294967296) 0))) (exists ((v_base2flt_~m_295 Int)) (and (not (= (mod v_base2flt_~m_295 4294967296) 0)) (or (and (= v_base2flt_~m_295 base2flt_~m) (= 4278190079 (mod v_base2flt_~m_295 4294967296))) (and (not (= 4278190079 (mod v_base2flt_~m_295 4294967296))) (<= (mod base2flt_~m 4294967296) 4278190079) (<= (mod base2flt_~m 4294967296) (mod v_base2flt_~m_295 4294967296))))))) (<= 1 |#StackHeapBarrier|))' at error location [2024-11-09 06:56:21,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:56:21,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:56:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 32, 31] total 77 [2024-11-09 06:56:21,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082687980] [2024-11-09 06:56:21,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:21,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2024-11-09 06:56:21,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:56:21,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2024-11-09 06:56:21,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1692, Invalid=6317, Unknown=1, NotChecked=0, Total=8010 [2024-11-09 06:56:21,592 INFO L87 Difference]: Start difference. First operand 266 states and 300 transitions. Second operand has 77 states, 77 states have (on average 3.25974025974026) internal successors, (251), 77 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:56:28,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:41,598 WARN L286 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 95 DAG size of output: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:57:25,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:27,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:49,427 WARN L286 SmtUtils]: Spent 14.14s on a formula simplification. DAG size of input: 95 DAG size of output: 83 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:57:51,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:38,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:38,945 INFO L93 Difference]: Finished difference Result 902 states and 1073 transitions. [2024-11-09 06:58:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 06:58:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.25974025974026) internal successors, (251), 77 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 102 [2024-11-09 06:58:38,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:38,948 INFO L225 Difference]: With dead ends: 902 [2024-11-09 06:58:38,949 INFO L226 Difference]: Without dead ends: 791 [2024-11-09 06:58:38,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5765 ImplicationChecksByTransitivity, 130.4s TimeCoverageRelationStatistics Valid=3651, Invalid=11354, Unknown=1, NotChecked=0, Total=15006 [2024-11-09 06:58:38,954 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 871 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 117 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:38,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 2775 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 3019 Invalid, 2 Unknown, 0 Unchecked, 30.1s Time] [2024-11-09 06:58:38,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-09 06:58:39,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 266. [2024-11-09 06:58:39,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 241 states have (on average 1.1493775933609958) internal successors, (277), 257 states have internal predecessors, (277), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 285 transitions. [2024-11-09 06:58:39,003 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 285 transitions. Word has length 102 [2024-11-09 06:58:39,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:39,004 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 285 transitions. [2024-11-09 06:58:39,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.25974025974026) internal successors, (251), 77 states have internal predecessors, (251), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:58:39,005 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 285 transitions. [2024-11-09 06:58:39,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 06:58:39,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:39,007 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:39,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 06:58:39,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 06:58:39,207 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:39,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:39,208 INFO L85 PathProgramCache]: Analyzing trace with hash -728912092, now seen corresponding path program 4 times [2024-11-09 06:58:39,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:58:39,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756638642] [2024-11-09 06:58:39,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:39,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:58:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:58:39,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:58:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:58:39,516 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:58:39,517 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:58:39,519 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 06:58:39,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 06:58:39,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 06:58:39,522 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 06:58:39,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 06:58:39,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 06:58:39,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 06:58:39,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 06:58:39,523 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 06:58:39,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 06:58:39,524 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 06:58:39,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 06:58:39,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 06:58:39,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 06:58:39,525 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 06:58:39,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 06:58:39,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 06:58:39,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 06:58:39,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 06:58:39,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 06:58:39,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 06:58:39,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 06:58:39,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 06:58:39,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 06:58:39,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:58:39,532 INFO L407 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:39,636 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:58:39,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:58:39 BoogieIcfgContainer [2024-11-09 06:58:39,643 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:58:39,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:58:39,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:58:39,645 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:58:39,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:55:03" (3/4) ... [2024-11-09 06:58:39,649 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:58:39,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:58:39,651 INFO L158 Benchmark]: Toolchain (without parser) took 218248.49ms. Allocated memory was 148.9MB in the beginning and 375.4MB in the end (delta: 226.5MB). Free memory was 105.8MB in the beginning and 171.9MB in the end (delta: -66.1MB). Peak memory consumption was 162.5MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,651 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:58:39,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.03ms. Allocated memory is still 148.9MB. Free memory was 105.8MB in the beginning and 90.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.88ms. Allocated memory is still 148.9MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,653 INFO L158 Benchmark]: Boogie Preprocessor took 40.00ms. Allocated memory is still 148.9MB. Free memory was 88.0MB in the beginning and 86.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,653 INFO L158 Benchmark]: RCFGBuilder took 1184.16ms. Allocated memory was 148.9MB in the beginning and 216.0MB in the end (delta: 67.1MB). Free memory was 86.3MB in the beginning and 171.0MB in the end (delta: -84.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,654 INFO L158 Benchmark]: TraceAbstraction took 216467.69ms. Allocated memory was 216.0MB in the beginning and 375.4MB in the end (delta: 159.4MB). Free memory was 170.0MB in the beginning and 171.9MB in the end (delta: -1.9MB). Peak memory consumption was 158.6MB. Max. memory is 16.1GB. [2024-11-09 06:58:39,654 INFO L158 Benchmark]: Witness Printer took 6.63ms. Allocated memory is still 375.4MB. Free memory is still 171.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:58:39,656 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 148.9MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.03ms. Allocated memory is still 148.9MB. Free memory was 105.8MB in the beginning and 90.1MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.88ms. Allocated memory is still 148.9MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.00ms. Allocated memory is still 148.9MB. Free memory was 88.0MB in the beginning and 86.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1184.16ms. Allocated memory was 148.9MB in the beginning and 216.0MB in the end (delta: 67.1MB). Free memory was 86.3MB in the beginning and 171.0MB in the end (delta: -84.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * TraceAbstraction took 216467.69ms. Allocated memory was 216.0MB in the beginning and 375.4MB in the end (delta: 159.4MB). Free memory was 170.0MB in the beginning and 171.9MB in the end (delta: -1.9MB). Peak memory consumption was 158.6MB. Max. memory is 16.1GB. * Witness Printer took 6.63ms. Allocated memory is still 375.4MB. Free memory is still 171.9MB. 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: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 77, overapproximation of bitwiseAnd at line 76. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=0, eb=0] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); [L238] RET, EXPR base2flt(0, 0) VAL [ea=0, eb=0] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] EXPR m & ~ (1U << 24U) [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L77] EXPR (e + 128) << 24U [L77] EXPR m | (unsigned int )((e + 128) << 24U) [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=-2533359616] [L80] return (__retres4); [L239] RET, EXPR base2flt(1, 0) VAL [ea=0, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] EXPR m & ~ (1U << 24U) [L76] m = m & ~ (1U << 24U) [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 83 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 216.3s, OverallIterations: 18, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 153.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 3145 SdHoareTripleChecker+Valid, 41.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3139 mSDsluCounter, 7370 SdHoareTripleChecker+Invalid, 39.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6243 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6403 IncrementalHoareTripleChecker+Invalid, 6845 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 1127 mSDtfsCounter, 6403 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1407 GetRequests, 998 SyntacticMatches, 19 SemanticMatches, 390 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12336 ImplicationChecksByTransitivity, 151.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=16, InterpolantAutomatonStates: 237, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2387 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 34.6s InterpolantComputationTime, 1177 NumberOfCodeBlocks, 1177 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1396 ConstructedInterpolants, 0 QuantifiedInterpolants, 10416 SizeOfPredicates, 3 NumberOfNonLiveVariables, 927 ConjunctsInSsa, 114 ConjunctsInUnsatCore, 29 InterpolantComputations, 11 PerfectInterpolantSequences, 272/3614 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 06:58:39,889 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 06:58:39,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:58:42,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:58:42,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2024-11-09 06:58:42,446 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:58:42,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:58:42,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:58:42,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:58:42,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:58:42,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:58:42,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:58:42,505 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:58:42,506 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:58:42,506 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:58:42,507 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:58:42,507 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:58:42,510 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:58:42,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:58:42,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:58:42,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:58:42,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:58:42,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:58:42,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:58:42,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:58:42,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:58:42,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:58:42,520 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:58:42,520 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:58:42,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:58:42,521 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:58:42,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:58:42,522 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:58:42,522 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:58:42,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:58:42,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:58:42,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:58:42,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:58:42,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:58:42,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:58:42,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:58:42,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:58:42,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:58:42,529 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:58:42,529 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:42,530 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:58:42,530 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:58:42,530 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_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd739e073fd22ceb2879e867de327b334b7eea402e53d4a8f9e32eed7e4110d8 [2024-11-09 06:58:43,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:58:43,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:58:43,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:58:43,094 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:58:43,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:58:43,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c Unable to find full path for "g++" [2024-11-09 06:58:45,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:58:45,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:58:45,753 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2024-11-09 06:58:45,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/65deadfd5/6a37dd7837f14a35a69d8ddfa8c17bd8/FLAG904dc97b0 [2024-11-09 06:58:46,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/data/65deadfd5/6a37dd7837f14a35a69d8ddfa8c17bd8 [2024-11-09 06:58:46,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:58:46,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:58:46,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:58:46,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:58:46,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:58:46,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18066905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46, skipping insertion in model container [2024-11-09 06:58:46,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,106 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:58:46,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:58:46,432 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:58:46,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:58:46,508 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:58:46,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46 WrapperNode [2024-11-09 06:58:46,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:58:46,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:58:46,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:58:46,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:58:46,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,569 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 135 [2024-11-09 06:58:46,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:58:46,570 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:58:46,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:58:46,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:58:46,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,614 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:58:46,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:58:46,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:58:46,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:58:46,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (1/1) ... [2024-11-09 06:58:46,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:58:46,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:46,666 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:58:46,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:58:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:58:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:58:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-09 06:58:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-09 06:58:46,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:58:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:58:46,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 06:58:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 06:58:46,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:58:46,814 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:58:47,497 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-09 06:58:47,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:58:47,523 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:58:47,524 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 06:58:47,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:58:47 BoogieIcfgContainer [2024-11-09 06:58:47,524 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:58:47,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:58:47,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:58:47,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:58:47,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:58:46" (1/3) ... [2024-11-09 06:58:47,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96a757f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:58:47, skipping insertion in model container [2024-11-09 06:58:47,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:58:46" (2/3) ... [2024-11-09 06:58:47,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96a757f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:58:47, skipping insertion in model container [2024-11-09 06:58:47,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:58:47" (3/3) ... [2024-11-09 06:58:47,538 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2024-11-09 06:58:47,559 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:58:47,560 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-09 06:58:47,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:58:47,652 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;@1db97025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:58:47,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-09 06:58:47,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 93 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:58:47,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:58:47,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:47,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:47,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:47,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1655170973, now seen corresponding path program 1 times [2024-11-09 06:58:47,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:47,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113189444] [2024-11-09 06:58:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:47,687 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 06:58:47,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:47,702 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:47,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:47,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:58:47,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:47,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:47,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:47,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:47,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113189444] [2024-11-09 06:58:47,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113189444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:47,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:58:47,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 06:58:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942467602] [2024-11-09 06:58:47,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:47,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:58:47,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:47,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:58:47,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:58:47,850 INFO L87 Difference]: Start difference. First operand has 100 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 93 states have internal predecessors, (115), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:58:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:47,883 INFO L93 Difference]: Finished difference Result 186 states and 250 transitions. [2024-11-09 06:58:47,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:58:47,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:58:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:47,894 INFO L225 Difference]: With dead ends: 186 [2024-11-09 06:58:47,895 INFO L226 Difference]: Without dead ends: 73 [2024-11-09 06:58:47,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 06:58:47,902 INFO L432 NwaCegarLoop]: 109 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, 109 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 06:58:47,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:58:47,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-09 06:58:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-09 06:58:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 67 states have internal predecessors, (77), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:47,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2024-11-09 06:58:47,970 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 9 [2024-11-09 06:58:47,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:47,971 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2024-11-09 06:58:47,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:58:47,972 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2024-11-09 06:58:47,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 06:58:47,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:47,974 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:47,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:48,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:48,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1654279711, now seen corresponding path program 1 times [2024-11-09 06:58:48,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:48,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466332727] [2024-11-09 06:58:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:48,177 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 06:58:48,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:48,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:48,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:58:48,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:48,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:48,297 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:48,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:48,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466332727] [2024-11-09 06:58:48,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466332727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:48,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:58:48,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:58:48,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292254320] [2024-11-09 06:58:48,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:48,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:58:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:48,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:58:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:58:48,304 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:58:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:48,420 INFO L93 Difference]: Finished difference Result 148 states and 172 transitions. [2024-11-09 06:58:48,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:58:48,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 06:58:48,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:48,423 INFO L225 Difference]: With dead ends: 148 [2024-11-09 06:58:48,423 INFO L226 Difference]: Without dead ends: 78 [2024-11-09 06:58:48,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:58:48,426 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 4 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:48,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 232 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:58:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-09 06:58:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-09 06:58:48,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 58 states have (on average 1.396551724137931) internal successors, (81), 71 states have internal predecessors, (81), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2024-11-09 06:58:48,441 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 9 [2024-11-09 06:58:48,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:48,441 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2024-11-09 06:58:48,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:58:48,441 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2024-11-09 06:58:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:58:48,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:48,445 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:48,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:48,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash -122298511, now seen corresponding path program 1 times [2024-11-09 06:58:48,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:48,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529522514] [2024-11-09 06:58:48,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:48,648 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 06:58:48,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:48,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:48,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:58:48,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:48,766 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:48,766 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:48,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529522514] [2024-11-09 06:58:48,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529522514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:48,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:58:48,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:58:48,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751246354] [2024-11-09 06:58:48,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:48,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:58:48,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:48,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:58:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:58:48,771 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:48,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:48,950 INFO L93 Difference]: Finished difference Result 192 states and 228 transitions. [2024-11-09 06:58:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:58:48,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 06:58:48,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:48,961 INFO L225 Difference]: With dead ends: 192 [2024-11-09 06:58:48,962 INFO L226 Difference]: Without dead ends: 124 [2024-11-09 06:58:48,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:58:48,967 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:48,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 214 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:58:48,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-09 06:58:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 114. [2024-11-09 06:58:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 93 states have (on average 1.3870967741935485) internal successors, (129), 106 states have internal predecessors, (129), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2024-11-09 06:58:48,992 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 16 [2024-11-09 06:58:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:48,992 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2024-11-09 06:58:48,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2024-11-09 06:58:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:58:48,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:48,997 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:49,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:49,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:49,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1405394952, now seen corresponding path program 1 times [2024-11-09 06:58:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234536305] [2024-11-09 06:58:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:49,200 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 06:58:49,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:49,203 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 06:58:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:49,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:58:49,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:49,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:49,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:49,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234536305] [2024-11-09 06:58:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234536305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:49,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:58:49,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:58:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271670117] [2024-11-09 06:58:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:49,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:58:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:58:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:58:49,285 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:49,392 INFO L93 Difference]: Finished difference Result 197 states and 229 transitions. [2024-11-09 06:58:49,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:58:49,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-09 06:58:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:49,395 INFO L225 Difference]: With dead ends: 197 [2024-11-09 06:58:49,395 INFO L226 Difference]: Without dead ends: 104 [2024-11-09 06:58:49,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:58:49,397 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 31 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:49,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 235 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:58:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-09 06:58:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2024-11-09 06:58:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 90 states have internal predecessors, (107), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 115 transitions. [2024-11-09 06:58:49,409 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 115 transitions. Word has length 21 [2024-11-09 06:58:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:49,410 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 115 transitions. [2024-11-09 06:58:49,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 115 transitions. [2024-11-09 06:58:49,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 06:58:49,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:49,413 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:49,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 06:58:49,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:49,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2099366012, now seen corresponding path program 1 times [2024-11-09 06:58:49,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:49,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632848544] [2024-11-09 06:58:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:49,616 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 06:58:49,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:49,619 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:49,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:58:49,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:49,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:49,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:49,923 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632848544] [2024-11-09 06:58:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632848544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:49,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [594840366] [2024-11-09 06:58:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:49,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:49,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:49,927 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:49,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:58:50,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:50,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:58:50,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:50,087 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [594840366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:50,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481716957] [2024-11-09 06:58:50,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:50,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:50,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:50,172 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:50,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:58:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:50,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:58:50,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:50,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:50,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481716957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:50,357 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:58:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2024-11-09 06:58:50,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462402260] [2024-11-09 06:58:50,357 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:58:50,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:58:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:50,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:58:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:58:50,364 INFO L87 Difference]: Start difference. First operand 98 states and 115 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:51,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:51,087 INFO L93 Difference]: Finished difference Result 214 states and 261 transitions. [2024-11-09 06:58:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 06:58:51,089 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-11-09 06:58:51,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:51,090 INFO L225 Difference]: With dead ends: 214 [2024-11-09 06:58:51,090 INFO L226 Difference]: Without dead ends: 143 [2024-11-09 06:58:51,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2024-11-09 06:58:51,092 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 158 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:51,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 432 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 06:58:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-09 06:58:51,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 107. [2024-11-09 06:58:51,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 87 states have (on average 1.3333333333333333) internal successors, (116), 99 states have internal predecessors, (116), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2024-11-09 06:58:51,134 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 21 [2024-11-09 06:58:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:51,135 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2024-11-09 06:58:51,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2024-11-09 06:58:51,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:58:51,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:51,140 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:51,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:51,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:58:51,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-09 06:58:51,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:51,746 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:51,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:51,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1350142816, now seen corresponding path program 1 times [2024-11-09 06:58:51,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:51,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876675389] [2024-11-09 06:58:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:51,748 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 06:58:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:51,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:51,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:51,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:58:51,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:51,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:52,026 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876675389] [2024-11-09 06:58:52,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876675389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:52,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1351729740] [2024-11-09 06:58:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:52,027 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:52,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:52,032 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:52,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-09 06:58:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:52,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:58:52,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:52,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:52,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:52,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:52,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1351729740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:52,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760065748] [2024-11-09 06:58:52,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:52,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:52,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:52,274 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:52,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 06:58:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:52,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 06:58:52,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:52,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:52,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760065748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:52,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:58:52,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 7] total 13 [2024-11-09 06:58:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913631666] [2024-11-09 06:58:52,547 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:58:52,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:58:52,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:58:52,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:58:52,550 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:53,091 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2024-11-09 06:58:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:58:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 06:58:53,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:53,094 INFO L225 Difference]: With dead ends: 233 [2024-11-09 06:58:53,094 INFO L226 Difference]: Without dead ends: 151 [2024-11-09 06:58:53,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2024-11-09 06:58:53,096 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 138 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:53,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 621 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:58:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-09 06:58:53,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 119. [2024-11-09 06:58:53,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 111 states have internal predecessors, (130), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:53,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2024-11-09 06:58:53,113 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 26 [2024-11-09 06:58:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:53,113 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2024-11-09 06:58:53,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3846153846153846) internal successors, (44), 10 states have internal predecessors, (44), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:58:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2024-11-09 06:58:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-09 06:58:53,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:53,115 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:53,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:53,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-09 06:58:53,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:53,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:53,716 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:53,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:53,717 INFO L85 PathProgramCache]: Analyzing trace with hash -526180245, now seen corresponding path program 1 times [2024-11-09 06:58:53,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:53,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027189402] [2024-11-09 06:58:53,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:53,717 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 06:58:53,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:53,722 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:53,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 06:58:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:53,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:58:53,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:53,953 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:53,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:54,298 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:54,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:54,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027189402] [2024-11-09 06:58:54,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027189402] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:54,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2048062034] [2024-11-09 06:58:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:54,299 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:54,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:54,303 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:54,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-09 06:58:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:54,420 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:58:54,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:54,500 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:54,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:54,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2048062034] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:54,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565202813] [2024-11-09 06:58:54,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:54,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:54,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:54,695 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:54,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 06:58:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:54,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:58:54,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:54,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:55,069 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:58:55,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565202813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:55,070 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:58:55,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2024-11-09 06:58:55,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469392254] [2024-11-09 06:58:55,071 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:58:55,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:58:55,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:55,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:58:55,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-09 06:58:55,073 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:58:56,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:56,001 INFO L93 Difference]: Finished difference Result 276 states and 342 transitions. [2024-11-09 06:58:56,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:58:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-09 06:58:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:56,006 INFO L225 Difference]: With dead ends: 276 [2024-11-09 06:58:56,006 INFO L226 Difference]: Without dead ends: 203 [2024-11-09 06:58:56,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-09 06:58:56,009 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 136 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:56,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 382 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:58:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-09 06:58:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 121. [2024-11-09 06:58:56,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 113 states have internal predecessors, (129), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:58:56,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 137 transitions. [2024-11-09 06:58:56,048 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 137 transitions. Word has length 38 [2024-11-09 06:58:56,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:56,049 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 137 transitions. [2024-11-09 06:58:56,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:58:56,049 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 137 transitions. [2024-11-09 06:58:56,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 06:58:56,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:56,051 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:56,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-09 06:58:56,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-09 06:58:56,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:56,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:56,654 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:58:56,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 553847392, now seen corresponding path program 2 times [2024-11-09 06:58:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1686136240] [2024-11-09 06:58:56,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:58:56,655 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 06:58:56,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:56,657 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:58:56,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-09 06:58:56,706 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:58:56,706 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:58:56,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:58:56,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:56,934 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:57,352 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:57,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1686136240] [2024-11-09 06:58:57,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1686136240] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:57,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [701718496] [2024-11-09 06:58:57,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:58:57,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:57,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:57,355 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:57,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-09 06:58:57,481 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:58:57,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:58:57,483 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:58:57,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:57,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [701718496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308492486] [2024-11-09 06:58:57,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:58:57,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:57,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:57,688 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:57,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 06:58:57,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:58:57,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:58:57,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:58:57,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:57,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:58,383 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:58:58,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308492486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:58:58,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:58:58,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10, 11, 10, 11] total 26 [2024-11-09 06:58:58,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047721392] [2024-11-09 06:58:58,385 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:58:58,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:58:58,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:58:58,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:58:58,387 INFO L87 Difference]: Start difference. First operand 121 states and 137 transitions. Second operand has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:00,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:00,793 INFO L93 Difference]: Finished difference Result 320 states and 378 transitions. [2024-11-09 06:59:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 06:59:00,798 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2024-11-09 06:59:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:00,803 INFO L225 Difference]: With dead ends: 320 [2024-11-09 06:59:00,804 INFO L226 Difference]: Without dead ends: 244 [2024-11-09 06:59:00,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=757, Invalid=1895, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 06:59:00,808 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 281 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1927 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:00,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1927 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:59:00,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-09 06:59:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 159. [2024-11-09 06:59:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 139 states have (on average 1.2517985611510791) internal successors, (174), 151 states have internal predecessors, (174), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:00,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 182 transitions. [2024-11-09 06:59:00,846 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 182 transitions. Word has length 46 [2024-11-09 06:59:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:00,847 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 182 transitions. [2024-11-09 06:59:00,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.0) internal successors, (104), 23 states have internal predecessors, (104), 1 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 182 transitions. [2024-11-09 06:59:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 06:59:00,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:00,853 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:00,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:01,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 06:59:01,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-09 06:59:01,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:01,455 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:59:01,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:01,455 INFO L85 PathProgramCache]: Analyzing trace with hash 489494059, now seen corresponding path program 2 times [2024-11-09 06:59:01,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:01,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1297994556] [2024-11-09 06:59:01,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:59:01,456 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 06:59:01,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:01,459 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:01,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 (18)] Waiting until timeout for monitored process [2024-11-09 06:59:01,496 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 06:59:01,496 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:01,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:59:01,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:01,515 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-09 06:59:01,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:59:01,515 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:01,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1297994556] [2024-11-09 06:59:01,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1297994556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:59:01,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:59:01,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:59:01,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633249496] [2024-11-09 06:59:01,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:01,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:59:01,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:01,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:59:01,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:59:01,517 INFO L87 Difference]: Start difference. First operand 159 states and 182 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:59:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:01,577 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2024-11-09 06:59:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:59:01,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58 [2024-11-09 06:59:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:01,581 INFO L225 Difference]: With dead ends: 159 [2024-11-09 06:59:01,581 INFO L226 Difference]: Without dead ends: 158 [2024-11-09 06:59:01,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 06:59:01,583 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:01,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:59:01,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-09 06:59:01,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-09 06:59:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.2446043165467626) internal successors, (173), 150 states have internal predecessors, (173), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:01,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 181 transitions. [2024-11-09 06:59:01,601 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 181 transitions. Word has length 58 [2024-11-09 06:59:01,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:01,602 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 181 transitions. [2024-11-09 06:59:01,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 06:59:01,602 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 181 transitions. [2024-11-09 06:59:01,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 06:59:01,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:01,604 INFO L215 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:01,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 (18)] Ended with exit code 0 [2024-11-09 06:59:01,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:01,805 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:59:01,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 489561585, now seen corresponding path program 1 times [2024-11-09 06:59:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:01,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890195523] [2024-11-09 06:59:01,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:01,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:59:01,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:01,808 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:01,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 06:59:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:01,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:59:01,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:02,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:03,009 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890195523] [2024-11-09 06:59:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890195523] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [893016190] [2024-11-09 06:59:03,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:03,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:03,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:03,014 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:03,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 06:59:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:03,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 06:59:03,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:03,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:03,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [893016190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:03,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934955] [2024-11-09 06:59:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:03,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:03,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:03,716 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:03,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:59:03,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:03,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 06:59:03,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:04,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:05,359 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:59:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 11, 11] total 27 [2024-11-09 06:59:05,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479011365] [2024-11-09 06:59:05,363 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:59:05,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 06:59:05,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:05,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 06:59:05,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=469, Unknown=0, NotChecked=0, Total=702 [2024-11-09 06:59:05,366 INFO L87 Difference]: Start difference. First operand 158 states and 181 transitions. Second operand has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:07,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:07,923 INFO L93 Difference]: Finished difference Result 401 states and 519 transitions. [2024-11-09 06:59:07,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 06:59:07,927 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2024-11-09 06:59:07,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:07,929 INFO L225 Difference]: With dead ends: 401 [2024-11-09 06:59:07,930 INFO L226 Difference]: Without dead ends: 329 [2024-11-09 06:59:07,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=380, Invalid=676, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 06:59:07,931 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 417 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:07,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 788 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-09 06:59:07,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-09 06:59:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 160. [2024-11-09 06:59:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 141 states have (on average 1.1914893617021276) internal successors, (168), 152 states have internal predecessors, (168), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:07,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 176 transitions. [2024-11-09 06:59:07,949 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 176 transitions. Word has length 58 [2024-11-09 06:59:07,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:07,950 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 176 transitions. [2024-11-09 06:59:07,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.7407407407407405) internal successors, (128), 27 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 176 transitions. [2024-11-09 06:59:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 06:59:07,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:07,952 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:07,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-09 06:59:08,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:08,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:08,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:08,558 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:59:08,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:08,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1824462304, now seen corresponding path program 3 times [2024-11-09 06:59:08,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718640163] [2024-11-09 06:59:08,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:59:08,559 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 06:59:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:08,561 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:08,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-09 06:59:08,661 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-09 06:59:08,661 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:08,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:59:08,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:09,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:10,369 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718640163] [2024-11-09 06:59:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718640163] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:10,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2124782684] [2024-11-09 06:59:10,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:59:10,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:10,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:10,373 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:10,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-09 06:59:10,572 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-09 06:59:10,573 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:10,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:59:10,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:10,721 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:10,721 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:11,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2124782684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:11,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832330272] [2024-11-09 06:59:11,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:59:11,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:11,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:11,151 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:11,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 06:59:11,257 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-11-09 06:59:11,257 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:11,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:59:11,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:11,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:11,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832330272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:11,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:59:11,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 18, 19, 18, 19] total 35 [2024-11-09 06:59:11,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896525112] [2024-11-09 06:59:11,891 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:59:11,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 06:59:11,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:11,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 06:59:11,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 06:59:11,895 INFO L87 Difference]: Start difference. First operand 160 states and 176 transitions. Second operand has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:20,019 INFO L93 Difference]: Finished difference Result 543 states and 641 transitions. [2024-11-09 06:59:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-09 06:59:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2024-11-09 06:59:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:20,023 INFO L225 Difference]: With dead ends: 543 [2024-11-09 06:59:20,023 INFO L226 Difference]: Without dead ends: 468 [2024-11-09 06:59:20,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 507 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2170 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=2582, Invalid=6924, Unknown=0, NotChecked=0, Total=9506 [2024-11-09 06:59:20,027 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 696 mSDsluCounter, 4790 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:20,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 5069 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 06:59:20,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-09 06:59:20,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 238. [2024-11-09 06:59:20,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 219 states have (on average 1.1963470319634704) internal successors, (262), 230 states have internal predecessors, (262), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:20,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 270 transitions. [2024-11-09 06:59:20,060 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 270 transitions. Word has length 86 [2024-11-09 06:59:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:20,061 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 270 transitions. [2024-11-09 06:59:20,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:59:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 270 transitions. [2024-11-09 06:59:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 06:59:20,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:20,063 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:20,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:20,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:20,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:20,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:20,664 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:59:20,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:20,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1850414735, now seen corresponding path program 2 times [2024-11-09 06:59:20,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:20,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270840355] [2024-11-09 06:59:20,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:59:20,666 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 06:59:20,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:20,667 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:20,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-09 06:59:20,728 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:59:20,729 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:20,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:59:20,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:21,483 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:21,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:23,548 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:23,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:23,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270840355] [2024-11-09 06:59:23,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270840355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:23,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1100692899] [2024-11-09 06:59:23,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:59:23,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:23,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:23,555 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:23,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-09 06:59:23,749 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:59:23,749 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:23,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 06:59:23,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:24,013 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:24,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:24,841 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:24,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1100692899] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:24,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780466975] [2024-11-09 06:59:24,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:59:24,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:24,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:24,843 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:24,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 06:59:24,914 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:59:24,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:24,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 06:59:24,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:25,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 06:59:28,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780466975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:28,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:59:28,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18, 18, 19, 19] total 51 [2024-11-09 06:59:28,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458646508] [2024-11-09 06:59:28,329 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:59:28,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-09 06:59:28,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-09 06:59:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=789, Invalid=1761, Unknown=0, NotChecked=0, Total=2550 [2024-11-09 06:59:28,332 INFO L87 Difference]: Start difference. First operand 238 states and 270 transitions. Second operand has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:39,054 INFO L93 Difference]: Finished difference Result 663 states and 890 transitions. [2024-11-09 06:59:39,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 06:59:39,058 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 98 [2024-11-09 06:59:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:39,061 INFO L225 Difference]: With dead ends: 663 [2024-11-09 06:59:39,061 INFO L226 Difference]: Without dead ends: 591 [2024-11-09 06:59:39,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 533 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1412, Invalid=2748, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 06:59:39,064 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 1079 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 4886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:39,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 2275 Invalid, 4886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 06:59:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-09 06:59:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 240. [2024-11-09 06:59:39,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 221 states have (on average 1.1266968325791855) internal successors, (249), 232 states have internal predecessors, (249), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 06:59:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2024-11-09 06:59:39,107 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 98 [2024-11-09 06:59:39,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:39,107 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2024-11-09 06:59:39,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.862745098039215) internal successors, (248), 51 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:59:39,108 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2024-11-09 06:59:39,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 06:59:39,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:39,109 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:39,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:39,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:39,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:39,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:39,710 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 06:59:39,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:39,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1820493888, now seen corresponding path program 4 times [2024-11-09 06:59:39,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:39,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091197794] [2024-11-09 06:59:39,711 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:59:39,711 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 06:59:39,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:39,712 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 06:59:39,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-09 06:59:39,777 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:59:39,777 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:39,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:59:39,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:40,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:43,066 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:43,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091197794] [2024-11-09 06:59:43,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091197794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:43,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572179531] [2024-11-09 06:59:43,067 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:59:43,067 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:43,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:43,068 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:43,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-09 06:59:43,256 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:59:43,256 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:43,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:59:43,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:43,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:43,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1572179531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:43,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954338448] [2024-11-09 06:59:43,838 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 06:59:43,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:43,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:43,839 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:43,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 06:59:43,923 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 06:59:43,923 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:59:43,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:59:43,930 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:44,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:59:44,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954338448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:59:44,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:59:44,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27, 27, 27, 27] total 53 [2024-11-09 06:59:44,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484253429] [2024-11-09 06:59:44,513 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:59:44,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-09 06:59:44,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:44,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-09 06:59:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 06:59:44,515 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:00:14,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:14,447 INFO L93 Difference]: Finished difference Result 454 states and 544 transitions. [2024-11-09 07:00:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-09 07:00:14,449 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136 [2024-11-09 07:00:14,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:14,451 INFO L225 Difference]: With dead ends: 454 [2024-11-09 07:00:14,451 INFO L226 Difference]: Without dead ends: 450 [2024-11-09 07:00:14,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2024-11-09 07:00:14,457 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 649 mSDsluCounter, 4185 mSDsCounter, 0 mSdLazyCounter, 3973 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 4296 SdHoareTripleChecker+Invalid, 4078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 3973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:14,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 4296 Invalid, 4078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 3973 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 07:00:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-09 07:00:14,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 364. [2024-11-09 07:00:14,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 345 states have (on average 1.2115942028985507) internal successors, (418), 356 states have internal predecessors, (418), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:00:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 426 transitions. [2024-11-09 07:00:14,573 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 426 transitions. Word has length 136 [2024-11-09 07:00:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:14,573 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 426 transitions. [2024-11-09 07:00:14,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:00:14,574 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 426 transitions. [2024-11-09 07:00:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 07:00:14,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:14,576 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:14,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-09 07:00:14,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:14,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2024-11-09 07:00:15,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 07:00:15,180 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:00:15,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -561757843, now seen corresponding path program 1 times [2024-11-09 07:00:15,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:15,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958247844] [2024-11-09 07:00:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:15,181 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 07:00:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:15,182 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 07:00:15,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 (31)] Waiting until timeout for monitored process [2024-11-09 07:00:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:15,264 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:00:15,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:15,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2024-11-09 07:00:15,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:00:15,355 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 07:00:15,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958247844] [2024-11-09 07:00:15,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1958247844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:15,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:15,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:00:15,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916556201] [2024-11-09 07:00:15,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:15,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:00:15,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:15,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:00:15,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:00:15,357 INFO L87 Difference]: Start difference. First operand 364 states and 426 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:00:15,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:15,929 INFO L93 Difference]: Finished difference Result 381 states and 447 transitions. [2024-11-09 07:00:15,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:00:15,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 152 [2024-11-09 07:00:15,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:15,932 INFO L225 Difference]: With dead ends: 381 [2024-11-09 07:00:15,932 INFO L226 Difference]: Without dead ends: 378 [2024-11-09 07:00:15,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:00:15,933 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 59 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:15,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 171 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:00:15,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-09 07:00:16,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 371. [2024-11-09 07:00:16,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 352 states have (on average 1.2102272727272727) internal successors, (426), 363 states have internal predecessors, (426), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:00:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 434 transitions. [2024-11-09 07:00:16,033 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 434 transitions. Word has length 152 [2024-11-09 07:00:16,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:16,034 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 434 transitions. [2024-11-09 07:00:16,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:00:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 434 transitions. [2024-11-09 07:00:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 07:00:16,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:16,036 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:16,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 (31)] Ended with exit code 0 [2024-11-09 07:00:16,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 07:00:16,240 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-09 07:00:16,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2135215238, now seen corresponding path program 1 times [2024-11-09 07:00:16,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 07:00:16,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1551884848] [2024-11-09 07:00:16,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:16,241 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 07:00:16,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 07:00:16,244 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 07:00:16,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2024-11-09 07:00:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:00:16,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:00:16,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:00:16,445 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 07:00:16,446 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:00:16,447 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2024-11-09 07:00:16,449 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2024-11-09 07:00:16,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2024-11-09 07:00:16,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2024-11-09 07:00:16,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2024-11-09 07:00:16,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2024-11-09 07:00:16,450 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2024-11-09 07:00:16,451 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2024-11-09 07:00:16,452 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2024-11-09 07:00:16,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2024-11-09 07:00:16,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2024-11-09 07:00:16,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2024-11-09 07:00:16,453 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2024-11-09 07:00:16,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2024-11-09 07:00:16,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/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 07:00:16,656 INFO L407 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:00:16,723 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:00:16,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:00:16 BoogieIcfgContainer [2024-11-09 07:00:16,729 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:00:16,730 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:00:16,730 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:00:16,731 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:00:16,731 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:58:47" (3/4) ... [2024-11-09 07:00:16,733 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 07:00:16,850 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:00:16,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:00:16,851 INFO L158 Benchmark]: Toolchain (without parser) took 90789.69ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 83.0MB in the beginning and 123.7MB in the end (delta: -40.7MB). Peak memory consumption was 101.9MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,851 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 69.2MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:00:16,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.45ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 66.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.03ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,852 INFO L158 Benchmark]: Boogie Preprocessor took 50.82ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 62.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,856 INFO L158 Benchmark]: RCFGBuilder took 903.00ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 67.3MB in the end (delta: -4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,856 INFO L158 Benchmark]: TraceAbstraction took 89202.08ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 66.8MB in the beginning and 40.8MB in the end (delta: 26.0MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,857 INFO L158 Benchmark]: Witness Printer took 119.79ms. Allocated memory is still 157.3MB. Free memory was 40.8MB in the beginning and 123.7MB in the end (delta: -82.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 07:00:16,858 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 69.2MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.45ms. Allocated memory is still 107.0MB. Free memory was 82.8MB in the beginning and 66.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.03ms. Allocated memory is still 107.0MB. Free memory was 66.3MB in the beginning and 64.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.82ms. Allocated memory is still 107.0MB. Free memory was 64.3MB in the beginning and 62.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 903.00ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 67.3MB in the end (delta: -4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 89202.08ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 66.8MB in the beginning and 40.8MB in the end (delta: 26.0MB). Peak memory consumption was 77.2MB. Max. memory is 16.1GB. * Witness Printer took 119.79ms. Allocated memory is still 157.3MB. Free memory was 40.8MB in the beginning and 123.7MB in the end (delta: -82.9MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 77]: integer overflow possible integer overflow possible We found a FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, e=0] [L238] RET, EXPR base2flt(0, 0) [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR (e + 128) << 24U [L77] res = m | (unsigned int )((e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [zero=0] [L239] one = base2flt(1, 0) [L240] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L77] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, m=0] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 89.0s, OverallIterations: 15, TraceHistogramMax: 24, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 57.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3714 SdHoareTripleChecker+Valid, 17.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3714 mSDsluCounter, 16897 SdHoareTripleChecker+Invalid, 15.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15400 mSDsCounter, 966 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12646 IncrementalHoareTripleChecker+Invalid, 13612 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 966 mSolverCounterUnsat, 1497 mSDtfsCounter, 12646 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3529 GetRequests, 3105 SyntacticMatches, 0 SemanticMatches, 424 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5355 ImplicationChecksByTransitivity, 48.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=371occurred in iteration=14, InterpolantAutomatonStates: 295, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1094 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 22.0s InterpolantComputationTime, 1947 NumberOfCodeBlocks, 1900 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 3265 ConstructedInterpolants, 8 QuantifiedInterpolants, 23309 SizeOfPredicates, 19 NumberOfNonLiveVariables, 2843 ConjunctsInSsa, 303 ConjunctsInUnsatCore, 54 InterpolantComputations, 6 PerfectInterpolantSequences, 1734/16716 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 proved your program to be incorrect! [2024-11-09 07:00:16,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc157ba-05fd-4f5c-b93a-04e1f484fd93/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)