./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:08:22,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:08:22,794 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:08:22,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:08:22,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:08:22,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:08:22,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:08:22,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:08:22,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:08:22,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:08:22,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:08:22,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:08:22,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:08:22,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:08:22,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:08:22,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:08:22,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:08:22,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:08:22,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:08:22,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:08:22,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:08:22,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:08:22,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:08:22,860 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:08:22,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:22,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:22,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:22,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:22,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:08:22,862 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:22,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:22,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:08:22,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:08:22,864 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd [2024-11-24 00:08:23,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:08:23,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:08:23,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:08:23,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:08:23,223 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:08:23,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:26,560 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/76cc9bc13/8e006c6799e14c79af7502c3d13ec70b/FLAG6f09c9245 [2024-11-24 00:08:26,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:08:26,890 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:26,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/76cc9bc13/8e006c6799e14c79af7502c3d13ec70b/FLAG6f09c9245 [2024-11-24 00:08:26,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/76cc9bc13/8e006c6799e14c79af7502c3d13ec70b [2024-11-24 00:08:26,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:08:26,920 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:08:26,921 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:26,922 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:08:26,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:08:26,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:26" (1/1) ... [2024-11-24 00:08:26,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd0f59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:26, skipping insertion in model container [2024-11-24 00:08:26,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:26" (1/1) ... [2024-11-24 00:08:26,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:08:27,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-11-24 00:08:27,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:27,343 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:08:27,358 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-11-24 00:08:27,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:27,452 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:08:27,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27 WrapperNode [2024-11-24 00:08:27,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:27,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:27,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:08:27,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:08:27,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,587 INFO L138 Inliner]: procedures = 30, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 496 [2024-11-24 00:08:27,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:27,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:08:27,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:08:27,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:08:27,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,611 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,619 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 00:08:27,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,646 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,654 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,657 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:08:27,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:08:27,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:08:27,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:08:27,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (1/1) ... [2024-11-24 00:08:27,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:27,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:27,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:08:27,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:08:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:08:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 00:08:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 00:08:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:08:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 00:08:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 00:08:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:08:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:08:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:08:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:08:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:08:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:08:27,941 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:08:27,944 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:08:28,979 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-24 00:08:28,980 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:08:29,002 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:08:29,002 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:08:29,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:29 BoogieIcfgContainer [2024-11-24 00:08:29,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:08:29,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:08:29,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:08:29,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:08:29,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:08:26" (1/3) ... [2024-11-24 00:08:29,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bc67c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:29, skipping insertion in model container [2024-11-24 00:08:29,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:27" (2/3) ... [2024-11-24 00:08:29,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71bc67c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:29, skipping insertion in model container [2024-11-24 00:08:29,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:29" (3/3) ... [2024-11-24 00:08:29,020 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:29,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:08:29,047 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-48.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:08:29,138 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:08:29,157 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=PETRI_NET, 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;@3d3979f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:08:29,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:08:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:29,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:29,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:29,185 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:29,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:29,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:29,190 INFO L85 PathProgramCache]: Analyzing trace with hash 667391828, now seen corresponding path program 1 times [2024-11-24 00:08:29,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:29,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297399163] [2024-11-24 00:08:29,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:29,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-24 00:08:29,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:29,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297399163] [2024-11-24 00:08:29,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297399163] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:08:29,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699558692] [2024-11-24 00:08:29,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:29,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:08:29,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:29,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:08:29,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:08:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:30,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:08:30,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-24 00:08:30,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:30,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699558692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:30,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:08:30,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:08:30,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143033020] [2024-11-24 00:08:30,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:30,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:08:30,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:30,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:08:30,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:30,295 INFO L87 Difference]: Start difference. First operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:30,334 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2024-11-24 00:08:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:08:30,336 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-24 00:08:30,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:30,345 INFO L225 Difference]: With dead ends: 229 [2024-11-24 00:08:30,345 INFO L226 Difference]: Without dead ends: 114 [2024-11-24 00:08:30,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:30,352 INFO L435 NwaCegarLoop]: 164 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, 164 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 [2024-11-24 00:08:30,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-24 00:08:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-24 00:08:30,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 164 transitions. [2024-11-24 00:08:30,418 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 164 transitions. Word has length 168 [2024-11-24 00:08:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:30,418 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 164 transitions. [2024-11-24 00:08:30,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2024-11-24 00:08:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:30,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:30,424 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:30,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:08:30,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:08:30,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:30,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1509309966, now seen corresponding path program 1 times [2024-11-24 00:08:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412107735] [2024-11-24 00:08:30,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:31,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412107735] [2024-11-24 00:08:31,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412107735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:31,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:31,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:31,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241216781] [2024-11-24 00:08:31,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:31,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:08:31,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:31,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:08:31,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:31,229 INFO L87 Difference]: Start difference. First operand 114 states and 164 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:31,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:31,313 INFO L93 Difference]: Finished difference Result 227 states and 328 transitions. [2024-11-24 00:08:31,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:31,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-24 00:08:31,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:31,317 INFO L225 Difference]: With dead ends: 227 [2024-11-24 00:08:31,317 INFO L226 Difference]: Without dead ends: 116 [2024-11-24 00:08:31,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:31,322 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:31,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 475 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:31,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-24 00:08:31,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-24 00:08:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 93 states have (on average 1.3333333333333333) internal successors, (124), 93 states have internal predecessors, (124), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:31,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 166 transitions. [2024-11-24 00:08:31,353 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 166 transitions. Word has length 168 [2024-11-24 00:08:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:31,355 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 166 transitions. [2024-11-24 00:08:31,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:31,355 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 166 transitions. [2024-11-24 00:08:31,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:31,363 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:31,363 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:31,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:08:31,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:31,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:31,367 INFO L85 PathProgramCache]: Analyzing trace with hash 888677872, now seen corresponding path program 1 times [2024-11-24 00:08:31,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:31,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716001503] [2024-11-24 00:08:31,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:31,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:31,906 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:31,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:31,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716001503] [2024-11-24 00:08:31,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716001503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:31,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:31,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:31,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424802532] [2024-11-24 00:08:31,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:31,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:08:31,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:31,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:08:31,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:31,913 INFO L87 Difference]: Start difference. First operand 116 states and 166 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:31,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:31,986 INFO L93 Difference]: Finished difference Result 232 states and 333 transitions. [2024-11-24 00:08:31,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:31,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:31,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:31,993 INFO L225 Difference]: With dead ends: 232 [2024-11-24 00:08:31,993 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 00:08:31,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:31,995 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:31,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 472 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:31,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 00:08:32,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-11-24 00:08:32,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 168 transitions. [2024-11-24 00:08:32,008 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 168 transitions. Word has length 168 [2024-11-24 00:08:32,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:32,009 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 168 transitions. [2024-11-24 00:08:32,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 168 transitions. [2024-11-24 00:08:32,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:32,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:32,016 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:32,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:08:32,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:32,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:32,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1568736242, now seen corresponding path program 1 times [2024-11-24 00:08:32,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:32,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573767916] [2024-11-24 00:08:32,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:32,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:32,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:32,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573767916] [2024-11-24 00:08:32,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573767916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:32,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:32,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:32,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629293589] [2024-11-24 00:08:32,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:32,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:08:32,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:32,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:08:32,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:32,451 INFO L87 Difference]: Start difference. First operand 118 states and 168 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:32,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:32,504 INFO L93 Difference]: Finished difference Result 236 states and 337 transitions. [2024-11-24 00:08:32,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:32,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:32,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:32,507 INFO L225 Difference]: With dead ends: 236 [2024-11-24 00:08:32,507 INFO L226 Difference]: Without dead ends: 121 [2024-11-24 00:08:32,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:32,509 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:32,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 473 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:32,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-24 00:08:32,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-11-24 00:08:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 97 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:32,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 170 transitions. [2024-11-24 00:08:32,521 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 170 transitions. Word has length 168 [2024-11-24 00:08:32,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:32,522 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 170 transitions. [2024-11-24 00:08:32,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:32,522 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2024-11-24 00:08:32,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:32,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:32,525 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:32,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:08:32,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:32,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash -951223692, now seen corresponding path program 1 times [2024-11-24 00:08:32,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:32,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039626843] [2024-11-24 00:08:32,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:32,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:32,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:08:32,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039626843] [2024-11-24 00:08:32,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039626843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:32,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:08:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462943708] [2024-11-24 00:08:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:32,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:08:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:08:32,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:08:32,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:32,960 INFO L87 Difference]: Start difference. First operand 120 states and 170 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:33,008 INFO L93 Difference]: Finished difference Result 240 states and 341 transitions. [2024-11-24 00:08:33,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:08:33,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:33,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:33,013 INFO L225 Difference]: With dead ends: 240 [2024-11-24 00:08:33,013 INFO L226 Difference]: Without dead ends: 123 [2024-11-24 00:08:33,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:08:33,014 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:33,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 475 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:33,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-24 00:08:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-24 00:08:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 99 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:33,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2024-11-24 00:08:33,037 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 168 [2024-11-24 00:08:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:33,040 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2024-11-24 00:08:33,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2024-11-24 00:08:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:33,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:33,047 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:33,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:08:33,047 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:33,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:33,048 INFO L85 PathProgramCache]: Analyzing trace with hash -949376650, now seen corresponding path program 1 times [2024-11-24 00:08:33,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:08:33,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173839332] [2024-11-24 00:08:33,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:33,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:08:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:08:33,417 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:08:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:08:33,774 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:08:33,775 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:08:33,776 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:08:33,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:08:33,783 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-24 00:08:33,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:08:33,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:08:33 BoogieIcfgContainer [2024-11-24 00:08:33,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:08:33,900 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:08:33,900 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:08:33,901 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:08:33,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:29" (3/4) ... [2024-11-24 00:08:33,908 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:08:33,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:08:33,910 INFO L158 Benchmark]: Toolchain (without parser) took 6990.41ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 83.0MB in the beginning and 114.6MB in the end (delta: -31.6MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-11-24 00:08:33,911 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:33,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.71ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 64.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:08:33,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.81ms. Allocated memory is still 109.1MB. Free memory was 64.6MB in the beginning and 60.2MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:08:33,912 INFO L158 Benchmark]: Boogie Preprocessor took 77.72ms. Allocated memory is still 109.1MB. Free memory was 60.2MB in the beginning and 56.6MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:33,912 INFO L158 Benchmark]: RCFGBuilder took 1331.12ms. Allocated memory is still 109.1MB. Free memory was 56.6MB in the beginning and 67.7MB in the end (delta: -11.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-24 00:08:33,914 INFO L158 Benchmark]: TraceAbstraction took 4892.14ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 67.1MB in the beginning and 114.6MB in the end (delta: -47.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-24 00:08:33,915 INFO L158 Benchmark]: Witness Printer took 8.93ms. Allocated memory is still 192.9MB. Free memory was 114.6MB in the beginning and 114.6MB in the end (delta: 10.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:08:33,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.71ms. Allocated memory is still 109.1MB. Free memory was 83.0MB in the beginning and 64.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.81ms. Allocated memory is still 109.1MB. Free memory was 64.6MB in the beginning and 60.2MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.72ms. Allocated memory is still 109.1MB. Free memory was 60.2MB in the beginning and 56.6MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1331.12ms. Allocated memory is still 109.1MB. Free memory was 56.6MB in the beginning and 67.7MB in the end (delta: -11.1MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4892.14ms. Allocated memory was 109.1MB in the beginning and 192.9MB in the end (delta: 83.9MB). Free memory was 67.1MB in the beginning and 114.6MB in the end (delta: -47.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * Witness Printer took 8.93ms. Allocated memory is still 192.9MB. Free memory was 114.6MB in the beginning and 114.6MB in the end (delta: 10.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someBinaryFLOATComparisonOperation at line 103, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 101, overapproximation of someBinaryFLOATComparisonOperation at line 135, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 103. Possible FailurePath: [L43] unsigned char isInitial = 0; [L44-L64] struct WrapperStruct00 WrapperStruct00 = { 32.8, 255.675, 5.5, 128.75, 4.5, 9.25, 5, 200, 8, 4, 100, 64, 1, 200, 2, 0, 1, 64, 100 }; [L65] unsigned char last_1_WrapperStruct00_var_1_7 = 5; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_7=5] [L139] isInitial = 1 [L140] FCALL initially() [L142] CALL updateLastVariables() [L132] EXPR WrapperStruct00.var_1_7 [L132] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L142] RET updateLastVariables() [L143] CALL updateVariables() [L96] WrapperStruct00.var_1_2 = __VERIFIER_nondet_float() [L97] EXPR WrapperStruct00.var_1_2 [L97] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F [L97] EXPR WrapperStruct00.var_1_2 [L97] EXPR WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] EXPR (WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] CALL assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L97] RET assume_abort_if_not((WrapperStruct00.var_1_2 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_2 <= -1.0e-20F) || (WrapperStruct00.var_1_2 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_2 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L98] WrapperStruct00.var_1_3 = __VERIFIER_nondet_float() [L99] EXPR WrapperStruct00.var_1_3 [L99] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F [L99] EXPR WrapperStruct00.var_1_3 [L99] EXPR WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] EXPR (WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] CALL assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L99] RET assume_abort_if_not((WrapperStruct00.var_1_3 >= -922337.2036854776000e+13F && WrapperStruct00.var_1_3 <= -1.0e-20F) || (WrapperStruct00.var_1_3 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_3 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L100] WrapperStruct00.var_1_4 = __VERIFIER_nondet_float() [L101] EXPR WrapperStruct00.var_1_4 [L101] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F [L101] EXPR WrapperStruct00.var_1_4 [L101] EXPR WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] EXPR (WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L101] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= 0.0F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L102] WrapperStruct00.var_1_5 = __VERIFIER_nondet_float() [L103] EXPR WrapperStruct00.var_1_5 [L103] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F [L103] EXPR WrapperStruct00.var_1_5 [L103] EXPR WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] EXPR (WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] CALL assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L103] RET assume_abort_if_not((WrapperStruct00.var_1_5 >= 0.0F && WrapperStruct00.var_1_5 <= -1.0e-20F) || (WrapperStruct00.var_1_5 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_5 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L104] WrapperStruct00.var_1_6 = __VERIFIER_nondet_float() [L105] EXPR WrapperStruct00.var_1_6 [L105] EXPR WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F [L105] EXPR WrapperStruct00.var_1_6 [L105] EXPR WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] EXPR (WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] CALL assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L105] RET assume_abort_if_not((WrapperStruct00.var_1_6 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L106] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L107] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 190) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 190) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L109] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L110] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L112] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L113] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L115] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L116] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L116] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L117] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L118] WrapperStruct00.var_1_15 = __VERIFIER_nondet_uchar() [L119] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L119] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L120] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L121] WrapperStruct00.var_1_17 = __VERIFIER_nondet_uchar() [L122] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 191) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L122] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 191) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L123] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L124] WrapperStruct00.var_1_18 = __VERIFIER_nondet_uchar() [L125] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L125] CALL assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L125] RET assume_abort_if_not(WrapperStruct00.var_1_18 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] CALL assume_abort_if_not(WrapperStruct00.var_1_18 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L126] RET assume_abort_if_not(WrapperStruct00.var_1_18 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L127] WrapperStruct00.var_1_19 = __VERIFIER_nondet_uchar() [L128] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L128] CALL assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L128] RET assume_abort_if_not(WrapperStruct00.var_1_19 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] EXPR WrapperStruct00.var_1_19 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] CALL assume_abort_if_not(WrapperStruct00.var_1_19 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L129] RET assume_abort_if_not(WrapperStruct00.var_1_19 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L143] RET updateVariables() [L144] CALL step() [L69] EXPR WrapperStruct00.var_1_2 [L69] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L69] COND FALSE !(WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) [L76] EXPR WrapperStruct00.var_1_6 [L76] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_6 [L78] EXPR WrapperStruct00.var_1_14 [L78] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_14 [L79] EXPR WrapperStruct00.var_1_17 [L79] WrapperStruct00.var_1_21 = WrapperStruct00.var_1_17 [L80] WrapperStruct00.var_1_22 = 4 [L81] EXPR WrapperStruct00.var_1_21 [L81] signed long int stepLocal_0 = WrapperStruct00.var_1_21; [L82] EXPR WrapperStruct00.var_1_17 [L82] EXPR WrapperStruct00.var_1_12 [L82] EXPR WrapperStruct00.var_1_18 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5, stepLocal_0=191] [L82] COND FALSE !(((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > stepLocal_0) [L85] EXPR WrapperStruct00.var_1_19 [L85] WrapperStruct00.var_1_16 = WrapperStruct00.var_1_19 [L87] WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L87] COND FALSE !(WrapperStruct00.var_1_16) [L144] RET step() [L145] CALL, EXPR property() [L135] EXPR WrapperStruct00.var_1_2 [L135] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) [L135] EXPR WrapperStruct00.var_1_1 [L135] EXPR WrapperStruct00.var_1_6 [L135] EXPR (WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR (((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135] EXPR ((((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17))) && (WrapperStruct00.var_1_22 == ((unsigned char) 4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L135-L136] return ((((((WrapperStruct00.var_1_2 <= WrapperStruct00.var_1_3) ? ((WrapperStruct00.var_1_3 < ((WrapperStruct00.var_1_4 - WrapperStruct00.var_1_5) + 1.395f)) ? (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6)) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) : (WrapperStruct00.var_1_1 == ((float) WrapperStruct00.var_1_6))) && (WrapperStruct00.var_1_16 ? ((last_1_WrapperStruct00_var_1_7 != last_1_WrapperStruct00_var_1_7) ? (WrapperStruct00.var_1_7 == ((unsigned char) ((WrapperStruct00.var_1_11 - WrapperStruct00.var_1_12) - WrapperStruct00.var_1_13))) : (WrapperStruct00.var_1_7 == ((unsigned char) (WrapperStruct00.var_1_11 - (((((WrapperStruct00.var_1_14) > (WrapperStruct00.var_1_15)) ? (WrapperStruct00.var_1_14) : (WrapperStruct00.var_1_15))) - WrapperStruct00.var_1_12))))) : 1)) && ((((WrapperStruct00.var_1_17 - WrapperStruct00.var_1_12) - (8 + WrapperStruct00.var_1_18)) > WrapperStruct00.var_1_21) ? (WrapperStruct00.var_1_16 == ((unsigned char) (! WrapperStruct00.var_1_19))) : (WrapperStruct00.var_1_16 == ((unsigned char) WrapperStruct00.var_1_19)))) && (WrapperStruct00.var_1_20 == ((unsigned long int) WrapperStruct00.var_1_14))) && (WrapperStruct00.var_1_21 == ((signed long int) WrapperStruct00.var_1_17))) && (WrapperStruct00.var_1_22 == ((unsigned char) 4)) ; [L145] RET, EXPR property() [L145] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_7=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 21, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 2059 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1250 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 809 mSDtfsCounter, 66 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=122occurred in iteration=5, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1176 NumberOfCodeBlocks, 1176 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1002 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 SizeOfPredicates, 0 NumberOfNonLiveVariables, 614 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 5000/5040 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:08:33,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:08:37,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:08:37,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:08:37,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:08:37,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:08:37,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:08:37,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:08:37,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:08:37,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:08:37,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:08:37,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:08:37,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:08:37,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:08:37,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:08:37,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:08:37,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:08:37,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:08:37,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:08:37,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:08:37,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:08:37,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:37,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:37,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:37,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:37,385 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:08:37,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:08:37,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:08:37,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:08:37,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:37,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:08:37,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:08:37,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:08:37,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:08:37,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:08:37,387 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 6af22983044ba27ae435cb0dcfcd33ee0fc69f0bc5638fc1b6ee52bc6b6af1dd [2024-11-24 00:08:37,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:08:37,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:08:37,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:08:37,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:08:37,822 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:08:37,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:41,242 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/0f3b507c3/d6d330e35db54bdb99d57b5eeac9c5f4/FLAGe7d70a72b [2024-11-24 00:08:41,527 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:08:41,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:41,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/0f3b507c3/d6d330e35db54bdb99d57b5eeac9c5f4/FLAGe7d70a72b [2024-11-24 00:08:41,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/data/0f3b507c3/d6d330e35db54bdb99d57b5eeac9c5f4 [2024-11-24 00:08:41,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:08:41,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:08:41,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:41,588 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:08:41,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:08:41,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:41" (1/1) ... [2024-11-24 00:08:41,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4be91a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:41, skipping insertion in model container [2024-11-24 00:08:41,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:08:41" (1/1) ... [2024-11-24 00:08:41,630 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:08:41,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-11-24 00:08:41,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:42,018 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:08:42,035 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-48.i[916,929] [2024-11-24 00:08:42,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:08:42,179 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:08:42,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42 WrapperNode [2024-11-24 00:08:42,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:08:42,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:42,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:08:42,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:08:42,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,256 INFO L138 Inliner]: procedures = 34, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 495 [2024-11-24 00:08:42,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:08:42,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:08:42,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:08:42,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:08:42,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,296 INFO L175 MemorySlicer]: Split 144 memory accesses to 2 slices as follows [2, 142]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 43 writes are split as follows [0, 43]. [2024-11-24 00:08:42,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,335 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:08:42,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:08:42,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:08:42,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:08:42,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (1/1) ... [2024-11-24 00:08:42,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:08:42,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:08:42,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:08:42,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:08:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 00:08:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-24 00:08:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-24 00:08:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:08:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:08:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-24 00:08:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-24 00:08:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:08:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:08:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:08:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:08:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:08:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:08:42,659 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:08:42,661 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:08:46,367 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-24 00:08:46,367 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:08:46,381 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:08:46,382 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:08:46,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:46 BoogieIcfgContainer [2024-11-24 00:08:46,383 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:08:46,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:08:46,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:08:46,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:08:46,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:08:41" (1/3) ... [2024-11-24 00:08:46,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f98cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:46, skipping insertion in model container [2024-11-24 00:08:46,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:08:42" (2/3) ... [2024-11-24 00:08:46,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f98cd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:08:46, skipping insertion in model container [2024-11-24 00:08:46,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:08:46" (3/3) ... [2024-11-24 00:08:46,397 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-48.i [2024-11-24 00:08:46,415 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:08:46,417 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-48.i that has 2 procedures, 118 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:08:46,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:08:46,513 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=PETRI_NET, 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;@28bae723, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:08:46,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:08:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:46,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:46,537 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:46,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:46,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:46,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1073768961, now seen corresponding path program 1 times [2024-11-24 00:08:46,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:46,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57191633] [2024-11-24 00:08:46,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:46,586 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 [2024-11-24 00:08:46,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:46,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:46,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:47,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:08:47,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:47,363 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-24 00:08:47,364 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:47,365 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:47,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57191633] [2024-11-24 00:08:47,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57191633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:47,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:47,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:08:47,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123700585] [2024-11-24 00:08:47,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:47,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:08:47,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:47,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:08:47,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:47,410 INFO L87 Difference]: Start difference. First operand has 118 states, 94 states have (on average 1.3936170212765957) internal successors, (131), 95 states have internal predecessors, (131), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:47,451 INFO L93 Difference]: Finished difference Result 229 states and 361 transitions. [2024-11-24 00:08:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:08:47,454 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-24 00:08:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:47,462 INFO L225 Difference]: With dead ends: 229 [2024-11-24 00:08:47,462 INFO L226 Difference]: Without dead ends: 114 [2024-11-24 00:08:47,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:08:47,471 INFO L435 NwaCegarLoop]: 164 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, 164 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 [2024-11-24 00:08:47,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:08:47,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-24 00:08:47,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-24 00:08:47,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:47,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 164 transitions. [2024-11-24 00:08:47,551 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 164 transitions. Word has length 168 [2024-11-24 00:08:47,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:47,553 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 164 transitions. [2024-11-24 00:08:47,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2024-11-24 00:08:47,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:47,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:47,563 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:47,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:47,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:47,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:47,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:47,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1044496541, now seen corresponding path program 1 times [2024-11-24 00:08:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:47,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312081109] [2024-11-24 00:08:47,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:47,768 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 [2024-11-24 00:08:47,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:47,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:47,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:48,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:08:48,408 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:48,557 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:48,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:48,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:48,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312081109] [2024-11-24 00:08:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312081109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:48,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:48,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:48,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199768318] [2024-11-24 00:08:48,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:48,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:08:48,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:48,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:08:48,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:48,568 INFO L87 Difference]: Start difference. First operand 114 states and 164 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:48,751 INFO L93 Difference]: Finished difference Result 230 states and 332 transitions. [2024-11-24 00:08:48,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:08:48,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:48,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:48,755 INFO L225 Difference]: With dead ends: 230 [2024-11-24 00:08:48,758 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 00:08:48,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:08:48,761 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 1 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:48,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 620 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:08:48,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 00:08:48,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-11-24 00:08:48,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 168 transitions. [2024-11-24 00:08:48,785 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 168 transitions. Word has length 168 [2024-11-24 00:08:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:48,787 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 168 transitions. [2024-11-24 00:08:48,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:48,788 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 168 transitions. [2024-11-24 00:08:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:48,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:48,791 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:48,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Ended with exit code 0 [2024-11-24 00:08:48,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:48,992 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:48,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1724554911, now seen corresponding path program 1 times [2024-11-24 00:08:48,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:48,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2046639342] [2024-11-24 00:08:48,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:48,995 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 [2024-11-24 00:08:48,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:48,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:48,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:49,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:08:49,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:49,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:49,618 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:49,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2046639342] [2024-11-24 00:08:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2046639342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:49,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:49,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:08:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468296282] [2024-11-24 00:08:49,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:49,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:08:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:49,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:08:49,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:49,625 INFO L87 Difference]: Start difference. First operand 118 states and 168 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:49,807 INFO L93 Difference]: Finished difference Result 236 states and 337 transitions. [2024-11-24 00:08:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:08:49,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:49,810 INFO L225 Difference]: With dead ends: 236 [2024-11-24 00:08:49,811 INFO L226 Difference]: Without dead ends: 121 [2024-11-24 00:08:49,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:49,816 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 1 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:49,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 765 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:08:49,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-24 00:08:49,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 120. [2024-11-24 00:08:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.3195876288659794) internal successors, (128), 97 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:49,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 170 transitions. [2024-11-24 00:08:49,842 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 170 transitions. Word has length 168 [2024-11-24 00:08:49,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:49,843 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 170 transitions. [2024-11-24 00:08:49,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:49,843 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 170 transitions. [2024-11-24 00:08:49,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:49,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:49,850 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:49,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:50,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:50,051 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:50,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:50,052 INFO L85 PathProgramCache]: Analyzing trace with hash -795405023, now seen corresponding path program 1 times [2024-11-24 00:08:50,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:50,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116781303] [2024-11-24 00:08:50,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:50,053 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 [2024-11-24 00:08:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:50,059 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:50,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:50,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:08:50,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:08:50,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:50,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:50,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116781303] [2024-11-24 00:08:50,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116781303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:50,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:50,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:08:50,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869631422] [2024-11-24 00:08:50,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:50,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:08:50,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:50,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:08:50,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:08:50,576 INFO L87 Difference]: Start difference. First operand 120 states and 170 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:50,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:50,723 INFO L93 Difference]: Finished difference Result 240 states and 341 transitions. [2024-11-24 00:08:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:08:50,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 168 [2024-11-24 00:08:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:50,728 INFO L225 Difference]: With dead ends: 240 [2024-11-24 00:08:50,730 INFO L226 Difference]: Without dead ends: 123 [2024-11-24 00:08:50,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:08:50,732 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 1 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:50,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 911 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:08:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-24 00:08:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-24 00:08:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.3131313131313131) internal successors, (130), 99 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:50,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2024-11-24 00:08:50,748 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 168 [2024-11-24 00:08:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:50,749 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2024-11-24 00:08:50,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:08:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2024-11-24 00:08:50,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-24 00:08:50,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:50,769 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:50,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-24 00:08:50,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:50,970 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:50,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:50,971 INFO L85 PathProgramCache]: Analyzing trace with hash -793557981, now seen corresponding path program 1 times [2024-11-24 00:08:50,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:50,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [940997091] [2024-11-24 00:08:50,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:50,972 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 [2024-11-24 00:08:50,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:50,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:50,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:51,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:08:51,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:51,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-24 00:08:51,738 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-24 00:08:51,742 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:51,743 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [940997091] [2024-11-24 00:08:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [940997091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:51,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:51,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:51,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540490661] [2024-11-24 00:08:51,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:51,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:08:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:51,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:08:51,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:51,748 INFO L87 Difference]: Start difference. First operand 122 states and 172 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:54,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:54,829 INFO L93 Difference]: Finished difference Result 242 states and 342 transitions. [2024-11-24 00:08:54,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:08:54,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 168 [2024-11-24 00:08:54,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:54,832 INFO L225 Difference]: With dead ends: 242 [2024-11-24 00:08:54,832 INFO L226 Difference]: Without dead ends: 123 [2024-11-24 00:08:54,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:08:54,834 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 144 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:54,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 463 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 00:08:54,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-24 00:08:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-24 00:08:54,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.303030303030303) internal successors, (129), 99 states have internal predecessors, (129), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-11-24 00:08:54,848 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 168 [2024-11-24 00:08:54,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:54,848 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-11-24 00:08:54,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 5 states have internal predecessors, (69), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-11-24 00:08:54,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-24 00:08:54,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:54,852 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:54,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:08:55,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:55,053 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:55,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:55,054 INFO L85 PathProgramCache]: Analyzing trace with hash -2036759063, now seen corresponding path program 1 times [2024-11-24 00:08:55,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:55,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088031438] [2024-11-24 00:08:55,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:55,055 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 [2024-11-24 00:08:55,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:55,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:55,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 00:08:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:08:55,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:08:55,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:08:55,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-24 00:08:55,908 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-24 00:08:55,908 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:08:55,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:08:55,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088031438] [2024-11-24 00:08:55,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088031438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:08:55,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:08:55,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:08:55,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375985880] [2024-11-24 00:08:55,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:08:55,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:08:55,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:08:55,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:08:55,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:08:55,912 INFO L87 Difference]: Start difference. First operand 122 states and 171 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:57,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:08:59,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:08:59,309 INFO L93 Difference]: Finished difference Result 242 states and 340 transitions. [2024-11-24 00:08:59,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:08:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2024-11-24 00:08:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:08:59,311 INFO L225 Difference]: With dead ends: 242 [2024-11-24 00:08:59,311 INFO L226 Difference]: Without dead ends: 123 [2024-11-24 00:08:59,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:08:59,313 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 134 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:08:59,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 461 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 00:08:59,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-24 00:08:59,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2024-11-24 00:08:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 99 states have (on average 1.292929292929293) internal successors, (128), 99 states have internal predecessors, (128), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:08:59,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 170 transitions. [2024-11-24 00:08:59,325 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 170 transitions. Word has length 170 [2024-11-24 00:08:59,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:08:59,325 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 170 transitions. [2024-11-24 00:08:59,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:08:59,325 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 170 transitions. [2024-11-24 00:08:59,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 00:08:59,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:08:59,328 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:08:59,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-24 00:08:59,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:08:59,530 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:08:59,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:08:59,531 INFO L85 PathProgramCache]: Analyzing trace with hash -402700829, now seen corresponding path program 1 times [2024-11-24 00:08:59,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:08:59,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045922354] [2024-11-24 00:08:59,531 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:08:59,532 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 [2024-11-24 00:08:59,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:08:59,534 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:08:59,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-24 00:09:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:00,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 00:09:00,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:00,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:09:00,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-24 00:09:00,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 25 [2024-11-24 00:09:00,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:00,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 60 [2024-11-24 00:09:00,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:00,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2024-11-24 00:09:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-24 00:09:00,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:09:00,769 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:00,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045922354] [2024-11-24 00:09:00,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1045922354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:09:00,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:09:00,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:09:00,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510919511] [2024-11-24 00:09:00,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:09:00,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:09:00,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:00,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:09:00,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:09:00,772 INFO L87 Difference]: Start difference. First operand 122 states and 170 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:09:04,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:09:13,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:09:13,211 INFO L93 Difference]: Finished difference Result 432 states and 601 transitions. [2024-11-24 00:09:13,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:09:13,213 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2024-11-24 00:09:13,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:09:13,216 INFO L225 Difference]: With dead ends: 432 [2024-11-24 00:09:13,216 INFO L226 Difference]: Without dead ends: 313 [2024-11-24 00:09:13,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:09:13,217 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 301 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1462 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:09:13,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 811 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1462 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-24 00:09:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-24 00:09:13,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 128. [2024-11-24 00:09:13,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 104 states have internal predecessors, (133), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-24 00:09:13,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2024-11-24 00:09:13,243 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 172 [2024-11-24 00:09:13,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:09:13,244 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2024-11-24 00:09:13,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:09:13,244 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2024-11-24 00:09:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 00:09:13,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:09:13,247 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:09:13,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-24 00:09:13,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:09:13,452 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:09:13,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:09:13,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2091644571, now seen corresponding path program 1 times [2024-11-24 00:09:13,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:09:13,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328684157] [2024-11-24 00:09:13,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:13,453 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 [2024-11-24 00:09:13,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:09:13,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:09:13,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:09:14,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:14,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 00:09:14,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:14,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:09:14,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-11-24 00:09:15,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:15,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 47 [2024-11-24 00:09:15,532 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:15,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 57 [2024-11-24 00:09:16,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:16,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2024-11-24 00:09:16,730 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:16,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 73 [2024-11-24 00:09:17,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:17,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 73 [2024-11-24 00:09:17,715 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:17,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 83 [2024-11-24 00:09:18,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:18,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 120 treesize of output 86 [2024-11-24 00:09:19,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:19,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 161 treesize of output 113 [2024-11-24 00:09:19,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:19,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 182 treesize of output 118 [2024-11-24 00:09:19,652 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:19,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 175 treesize of output 121 [2024-11-24 00:09:19,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:19,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 256 treesize of output 100 [2024-11-24 00:09:20,170 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 272 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-24 00:09:20,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:20,543 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:09:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328684157] [2024-11-24 00:09:20,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1328684157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2090338387] [2024-11-24 00:09:20,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:09:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:09:20,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:09:20,546 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:09:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-24 00:09:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:09:23,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:09:23,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:09:23,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:09:24,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:09:25,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:09:25,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2024-11-24 00:09:25,754 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:25,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 51 [2024-11-24 00:09:26,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:26,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 62 [2024-11-24 00:09:26,912 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:26,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 65 [2024-11-24 00:09:27,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:27,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 65 [2024-11-24 00:09:27,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:27,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 85 treesize of output 73 [2024-11-24 00:09:28,617 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:28,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 135 treesize of output 103 [2024-11-24 00:09:28,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:28,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 36 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 146 treesize of output 106 [2024-11-24 00:09:29,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:29,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 143 treesize of output 109 [2024-11-24 00:09:29,540 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:09:29,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 216 treesize of output 100 [2024-11-24 00:09:29,576 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 272 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-24 00:09:29,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:09:29,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2090338387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:09:29,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:09:29,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2024-11-24 00:09:29,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143212260] [2024-11-24 00:09:29,766 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:09:29,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 00:09:29,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:09:29,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 00:09:29,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:09:29,768 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-11-24 00:09:33,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:35,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:36,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:09:37,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:09:39,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:09:42,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:10:05,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:09,857 INFO L93 Difference]: Finished difference Result 401 states and 535 transitions. [2024-11-24 00:10:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:10:09,858 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) Word has length 172 [2024-11-24 00:10:09,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:09,860 INFO L225 Difference]: With dead ends: 401 [2024-11-24 00:10:09,861 INFO L226 Difference]: Without dead ends: 276 [2024-11-24 00:10:09,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=374, Invalid=1432, Unknown=0, NotChecked=0, Total=1806 [2024-11-24 00:10:09,863 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 753 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 182 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:09,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1312 Invalid, 2058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1875 Invalid, 1 Unknown, 0 Unchecked, 38.0s Time] [2024-11-24 00:10:09,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-11-24 00:10:09,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 273. [2024-11-24 00:10:09,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 220 states have (on average 1.2545454545454546) internal successors, (276), 221 states have internal predecessors, (276), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:10:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 360 transitions. [2024-11-24 00:10:09,922 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 360 transitions. Word has length 172 [2024-11-24 00:10:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:09,923 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 360 transitions. [2024-11-24 00:10:09,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 25 states have internal predecessors, (156), 12 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2024-11-24 00:10:09,924 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 360 transitions. [2024-11-24 00:10:09,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-24 00:10:09,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:09,926 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:09,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-24 00:10:10,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-24 00:10:10,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:10,327 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:10,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:10,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1768817127, now seen corresponding path program 1 times [2024-11-24 00:10:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946281211] [2024-11-24 00:10:10,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:10,329 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 [2024-11-24 00:10:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:10,332 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:10:10,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 00:10:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:10,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:10:10,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:10,791 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-24 00:10:10,791 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:10,792 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:10,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946281211] [2024-11-24 00:10:10,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946281211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:10,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:10,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:10:10,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224567555] [2024-11-24 00:10:10,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:10,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:10:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:10,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:10:10,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:10,796 INFO L87 Difference]: Start difference. First operand 273 states and 360 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:10:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:10,897 INFO L93 Difference]: Finished difference Result 543 states and 717 transitions. [2024-11-24 00:10:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:10:10,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 172 [2024-11-24 00:10:10,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:10,903 INFO L225 Difference]: With dead ends: 543 [2024-11-24 00:10:10,903 INFO L226 Difference]: Without dead ends: 273 [2024-11-24 00:10:10,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:10:10,904 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:10,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:10:10,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-24 00:10:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-24 00:10:10,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 220 states have (on average 1.25) internal successors, (275), 221 states have internal predecessors, (275), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:10:10,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 359 transitions. [2024-11-24 00:10:10,964 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 359 transitions. Word has length 172 [2024-11-24 00:10:10,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:10,964 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 359 transitions. [2024-11-24 00:10:10,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:10:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 359 transitions. [2024-11-24 00:10:10,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:10:10,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:10,967 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:10,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 00:10:11,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:11,168 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:11,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:11,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1163084800, now seen corresponding path program 1 times [2024-11-24 00:10:11,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:11,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203427045] [2024-11-24 00:10:11,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:11,170 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 [2024-11-24 00:10:11,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:11,176 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:10:11,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:10:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:11,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-24 00:10:11,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:12,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:10:12,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-24 00:10:13,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:13,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2024-11-24 00:10:13,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:13,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2024-11-24 00:10:13,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:13,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 67 [2024-11-24 00:10:14,169 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:14,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 77 [2024-11-24 00:10:14,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:14,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 150 treesize of output 80 [2024-11-24 00:10:15,242 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:15,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 90 [2024-11-24 00:10:16,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:16,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 160 treesize of output 93 [2024-11-24 00:10:16,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:16,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 155 treesize of output 103 [2024-11-24 00:10:17,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:17,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 165 treesize of output 116 [2024-11-24 00:10:18,357 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:18,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 129 [2024-11-24 00:10:19,392 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:19,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 190 treesize of output 132 [2024-11-24 00:10:20,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:20,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 238 treesize of output 148 [2024-11-24 00:10:21,317 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:21,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 199 treesize of output 134 [2024-11-24 00:10:21,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:21,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 192 treesize of output 137 [2024-11-24 00:10:22,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:22,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 227 treesize of output 83 [2024-11-24 00:10:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 656 proven. 80 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-24 00:10:22,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:10:23,500 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:23,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203427045] [2024-11-24 00:10:23,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1203427045] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:23,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:10:23,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-11-24 00:10:23,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453675430] [2024-11-24 00:10:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:23,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:23,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:23,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:23,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2024-11-24 00:10:23,502 INFO L87 Difference]: Start difference. First operand 273 states and 359 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:10:27,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:27,163 INFO L93 Difference]: Finished difference Result 629 states and 825 transitions. [2024-11-24 00:10:27,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:27,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 174 [2024-11-24 00:10:27,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:27,168 INFO L225 Difference]: With dead ends: 629 [2024-11-24 00:10:27,168 INFO L226 Difference]: Without dead ends: 359 [2024-11-24 00:10:27,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:10:27,170 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 41 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:27,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 459 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:10:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-24 00:10:27,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 295. [2024-11-24 00:10:27,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 242 states have (on average 1.2520661157024793) internal successors, (303), 243 states have internal predecessors, (303), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:10:27,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 387 transitions. [2024-11-24 00:10:27,218 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 387 transitions. Word has length 174 [2024-11-24 00:10:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:27,219 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 387 transitions. [2024-11-24 00:10:27,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:10:27,219 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 387 transitions. [2024-11-24 00:10:27,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:10:27,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:27,222 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:27,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:10:27,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:27,423 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:27,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:27,423 INFO L85 PathProgramCache]: Analyzing trace with hash 686042992, now seen corresponding path program 1 times [2024-11-24 00:10:27,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:27,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918077610] [2024-11-24 00:10:27,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:27,424 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 [2024-11-24 00:10:27,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:27,426 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:10:27,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-24 00:10:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:27,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:10:27,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:10:27,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:27,841 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:27,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918077610] [2024-11-24 00:10:27,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918077610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:27,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:27,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:10:27,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168082002] [2024-11-24 00:10:27,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:27,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:10:27,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:27,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:10:27,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:27,842 INFO L87 Difference]: Start difference. First operand 295 states and 387 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:10:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:27,929 INFO L93 Difference]: Finished difference Result 593 states and 779 transitions. [2024-11-24 00:10:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:10:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 174 [2024-11-24 00:10:27,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:27,932 INFO L225 Difference]: With dead ends: 593 [2024-11-24 00:10:27,932 INFO L226 Difference]: Without dead ends: 301 [2024-11-24 00:10:27,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:10:27,934 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:27,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 619 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:10:27,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-24 00:10:27,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2024-11-24 00:10:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 248 states have (on average 1.2459677419354838) internal successors, (309), 249 states have internal predecessors, (309), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:10:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 393 transitions. [2024-11-24 00:10:27,976 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 393 transitions. Word has length 174 [2024-11-24 00:10:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:27,977 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 393 transitions. [2024-11-24 00:10:27,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:10:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 393 transitions. [2024-11-24 00:10:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:10:27,979 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:27,979 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:27,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-24 00:10:28,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:28,180 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:28,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:28,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1088040041, now seen corresponding path program 1 times [2024-11-24 00:10:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:28,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953435112] [2024-11-24 00:10:28,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:28,181 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 [2024-11-24 00:10:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:28,185 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:10:28,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 00:10:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:28,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:10:28,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:28,641 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-11-24 00:10:28,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:10:28,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:28,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953435112] [2024-11-24 00:10:28,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953435112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:10:28,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:10:28,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:10:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446772651] [2024-11-24 00:10:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:10:28,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:10:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:28,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:10:28,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:10:28,644 INFO L87 Difference]: Start difference. First operand 301 states and 393 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 00:10:28,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:10:28,997 INFO L93 Difference]: Finished difference Result 615 states and 800 transitions. [2024-11-24 00:10:28,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:10:28,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 174 [2024-11-24 00:10:28,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:10:29,001 INFO L225 Difference]: With dead ends: 615 [2024-11-24 00:10:29,001 INFO L226 Difference]: Without dead ends: 315 [2024-11-24 00:10:29,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:10:29,005 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 1 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:10:29,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 641 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:10:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-24 00:10:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 301. [2024-11-24 00:10:29,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 248 states have (on average 1.2419354838709677) internal successors, (308), 249 states have internal predecessors, (308), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:10:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 392 transitions. [2024-11-24 00:10:29,054 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 392 transitions. Word has length 174 [2024-11-24 00:10:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:10:29,058 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 392 transitions. [2024-11-24 00:10:29,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-24 00:10:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 392 transitions. [2024-11-24 00:10:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 00:10:29,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:10:29,060 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:10:29,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-24 00:10:29,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:10:29,260 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:10:29,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:10:29,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1517698347, now seen corresponding path program 1 times [2024-11-24 00:10:29,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:10:29,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386109080] [2024-11-24 00:10:29,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:29,261 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 [2024-11-24 00:10:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:10:29,263 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:10:29,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:10:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:29,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:10:29,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:29,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:10:30,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 42 [2024-11-24 00:10:30,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:30,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 45 [2024-11-24 00:10:31,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:31,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 55 [2024-11-24 00:10:31,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:31,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 58 [2024-11-24 00:10:31,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:31,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 58 [2024-11-24 00:10:32,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:32,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 58 [2024-11-24 00:10:32,592 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:32,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 68 [2024-11-24 00:10:33,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:33,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 81 [2024-11-24 00:10:33,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:33,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 159 treesize of output 111 [2024-11-24 00:10:34,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:34,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 116 [2024-11-24 00:10:34,349 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:34,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 173 treesize of output 119 [2024-11-24 00:10:34,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:34,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 254 treesize of output 98 [2024-11-24 00:10:34,834 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 352 proven. 320 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-24 00:10:34,834 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:35,145 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:10:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386109080] [2024-11-24 00:10:35,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386109080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:35,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [898096089] [2024-11-24 00:10:35,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:10:35,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:10:35,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:10:35,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:10:35,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-24 00:10:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:10:37,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 00:10:37,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:10:38,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:10:39,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 38 [2024-11-24 00:10:39,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:39,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2024-11-24 00:10:40,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:40,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 60 [2024-11-24 00:10:41,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:41,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 71 [2024-11-24 00:10:42,069 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:42,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 82 [2024-11-24 00:10:42,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:42,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 93 [2024-11-24 00:10:44,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:44,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 107 treesize of output 104 [2024-11-24 00:10:45,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:45,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 118 treesize of output 107 [2024-11-24 00:10:46,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:46,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 157 treesize of output 134 [2024-11-24 00:10:46,736 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:46,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 66 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 168 treesize of output 137 [2024-11-24 00:10:47,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:47,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 55 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 165 treesize of output 140 [2024-11-24 00:10:47,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:10:47,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 238 treesize of output 110 [2024-11-24 00:10:47,596 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 448 proven. 320 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 00:10:47,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:10:47,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [898096089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:10:47,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:10:47,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 20] total 34 [2024-11-24 00:10:47,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555349196] [2024-11-24 00:10:47,747 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:10:47,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-24 00:10:47,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:10:47,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-24 00:10:47,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=250, Invalid=1156, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:10:47,750 INFO L87 Difference]: Start difference. First operand 301 states and 392 transitions. Second operand has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-24 00:10:53,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:54,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:10:56,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:10:59,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:11:00,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:32,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:11:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:11:35,846 INFO L93 Difference]: Finished difference Result 680 states and 867 transitions. [2024-11-24 00:11:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-24 00:11:35,847 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) Word has length 174 [2024-11-24 00:11:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:11:35,850 INFO L225 Difference]: With dead ends: 680 [2024-11-24 00:11:35,850 INFO L226 Difference]: Without dead ends: 382 [2024-11-24 00:11:35,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 356 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1476 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=1351, Invalid=4811, Unknown=0, NotChecked=0, Total=6162 [2024-11-24 00:11:35,856 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 1206 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 2520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:11:35,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 1102 Invalid, 2520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 41.2s Time] [2024-11-24 00:11:35,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-24 00:11:35,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 223. [2024-11-24 00:11:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 173 states have (on average 1.1791907514450868) internal successors, (204), 174 states have internal predecessors, (204), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-24 00:11:35,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2024-11-24 00:11:35,915 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 174 [2024-11-24 00:11:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:11:35,915 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2024-11-24 00:11:35,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.121212121212121) internal successors, (169), 30 states have internal predecessors, (169), 15 states have call successors, (42), 15 states have call predecessors, (42), 15 states have return successors, (42), 15 states have call predecessors, (42), 15 states have call successors, (42) [2024-11-24 00:11:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2024-11-24 00:11:35,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-24 00:11:35,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:11:35,919 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:11:35,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-24 00:11:36,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:11:36,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:11:36,320 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:11:36,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:11:36,321 INFO L85 PathProgramCache]: Analyzing trace with hash -163096509, now seen corresponding path program 1 times [2024-11-24 00:11:36,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:11:36,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269554034] [2024-11-24 00:11:36,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:36,322 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 [2024-11-24 00:11:36,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:11:36,324 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:11:36,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-24 00:11:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:37,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 00:11:37,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:37,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:11:37,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-24 00:11:37,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-24 00:11:37,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-11-24 00:11:38,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:38,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 57 [2024-11-24 00:11:38,777 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:38,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-24 00:11:39,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:39,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-24 00:11:39,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:39,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 60 [2024-11-24 00:11:39,872 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:39,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95 treesize of output 70 [2024-11-24 00:11:40,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:40,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 100 [2024-11-24 00:11:40,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:40,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 172 treesize of output 105 [2024-11-24 00:11:40,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:40,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 165 treesize of output 108 [2024-11-24 00:11:41,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:41,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 96 [2024-11-24 00:11:41,386 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 384 proven. 272 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-24 00:11:41,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:41,890 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:11:41,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1269554034] [2024-11-24 00:11:41,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1269554034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:41,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1375126508] [2024-11-24 00:11:41,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:11:41,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:11:41,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:11:41,893 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:11:41,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-24 00:11:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:11:45,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 00:11:45,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:11:46,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:11:46,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:47,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:47,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:47,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:47,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:47,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:48,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-24 00:11:48,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 40 [2024-11-24 00:11:49,041 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:49,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 70 [2024-11-24 00:11:49,267 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:49,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 122 treesize of output 73 [2024-11-24 00:11:49,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:49,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 119 treesize of output 76 [2024-11-24 00:11:49,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:11:49,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 192 treesize of output 88 [2024-11-24 00:11:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 120 proven. 272 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-24 00:11:49,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:11:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1375126508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:11:49,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:11:49,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 22 [2024-11-24 00:11:49,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123381578] [2024-11-24 00:11:49,979 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:11:49,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 00:11:49,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:11:49,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 00:11:49,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:11:49,982 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2024-11-24 00:11:51,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:52,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:11:53,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:55,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:11:57,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:10,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:17,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.34s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:19,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:19,874 INFO L93 Difference]: Finished difference Result 556 states and 687 transitions. [2024-11-24 00:12:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:12:19,876 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) Word has length 175 [2024-11-24 00:12:19,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:19,879 INFO L225 Difference]: With dead ends: 556 [2024-11-24 00:12:19,879 INFO L226 Difference]: Without dead ends: 336 [2024-11-24 00:12:19,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 375 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=280, Invalid=1202, Unknown=0, NotChecked=0, Total=1482 [2024-11-24 00:12:19,881 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 661 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 2097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:19,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1355 Invalid, 2097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2024-11-24 00:12:19,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-11-24 00:12:19,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 256. [2024-11-24 00:12:19,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 200 states have (on average 1.19) internal successors, (238), 200 states have internal predecessors, (238), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:12:19,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 314 transitions. [2024-11-24 00:12:19,947 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 314 transitions. Word has length 175 [2024-11-24 00:12:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:19,948 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 314 transitions. [2024-11-24 00:12:19,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.478260869565218) internal successors, (149), 22 states have internal predecessors, (149), 8 states have call successors, (42), 8 states have call predecessors, (42), 8 states have return successors, (42), 8 states have call predecessors, (42), 8 states have call successors, (42) [2024-11-24 00:12:19,949 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 314 transitions. [2024-11-24 00:12:19,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:12:19,950 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:19,950 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:19,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:20,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-11-24 00:12:20,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:20,351 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:20,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:20,352 INFO L85 PathProgramCache]: Analyzing trace with hash 265532355, now seen corresponding path program 1 times [2024-11-24 00:12:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:20,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185692284] [2024-11-24 00:12:20,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:20,353 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 [2024-11-24 00:12:20,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:20,355 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:12:20,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:12:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:21,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-24 00:12:21,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:21,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 10 [2024-11-24 00:12:21,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:12:21,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2024-11-24 00:12:21,266 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:12:21,267 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:21,267 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:21,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185692284] [2024-11-24 00:12:21,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185692284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:21,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:21,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:12:21,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312655021] [2024-11-24 00:12:21,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:21,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:21,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:21,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:21,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:21,269 INFO L87 Difference]: Start difference. First operand 256 states and 314 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:12:25,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:25,983 INFO L93 Difference]: Finished difference Result 443 states and 538 transitions. [2024-11-24 00:12:25,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:12:25,995 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 176 [2024-11-24 00:12:25,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:26,000 INFO L225 Difference]: With dead ends: 443 [2024-11-24 00:12:26,000 INFO L226 Difference]: Without dead ends: 441 [2024-11-24 00:12:26,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:12:26,002 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 121 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:26,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 884 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-24 00:12:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-24 00:12:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 259. [2024-11-24 00:12:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 203 states have (on average 1.187192118226601) internal successors, (241), 203 states have internal predecessors, (241), 38 states have call successors, (38), 17 states have call predecessors, (38), 17 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:12:26,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 317 transitions. [2024-11-24 00:12:26,086 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 317 transitions. Word has length 176 [2024-11-24 00:12:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:26,087 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 317 transitions. [2024-11-24 00:12:26,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:12:26,087 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 317 transitions. [2024-11-24 00:12:26,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:12:26,088 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:26,088 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:26,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:12:26,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:26,289 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:26,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:26,290 INFO L85 PathProgramCache]: Analyzing trace with hash 267379397, now seen corresponding path program 1 times [2024-11-24 00:12:26,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:26,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957405580] [2024-11-24 00:12:26,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:26,290 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 [2024-11-24 00:12:26,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:26,292 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:12:26,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-24 00:12:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:27,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:12:27,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:27,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:12:27,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:12:27,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:12:27,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-24 00:12:27,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:27,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 44 [2024-11-24 00:12:27,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:27,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 50 [2024-11-24 00:12:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 272 proven. 0 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-24 00:12:27,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:27,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:27,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957405580] [2024-11-24 00:12:27,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957405580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:27,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:27,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:12:27,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526945506] [2024-11-24 00:12:27,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:27,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:27,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:27,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:27,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:27,689 INFO L87 Difference]: Start difference. First operand 259 states and 317 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:29,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:30,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:34,523 INFO L93 Difference]: Finished difference Result 644 states and 786 transitions. [2024-11-24 00:12:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:12:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-11-24 00:12:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:34,527 INFO L225 Difference]: With dead ends: 644 [2024-11-24 00:12:34,527 INFO L226 Difference]: Without dead ends: 388 [2024-11-24 00:12:34,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:12:34,529 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 215 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:34,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 469 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-24 00:12:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-24 00:12:34,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 337. [2024-11-24 00:12:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 260 states have (on average 1.1884615384615385) internal successors, (309), 261 states have internal predecessors, (309), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:12:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 415 transitions. [2024-11-24 00:12:34,615 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 415 transitions. Word has length 176 [2024-11-24 00:12:34,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:34,616 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 415 transitions. [2024-11-24 00:12:34,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:34,616 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 415 transitions. [2024-11-24 00:12:34,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:12:34,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:34,618 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:34,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-24 00:12:34,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:34,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:34,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:34,820 INFO L85 PathProgramCache]: Analyzing trace with hash 2042386759, now seen corresponding path program 1 times [2024-11-24 00:12:34,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:34,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1838201492] [2024-11-24 00:12:34,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:34,821 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 [2024-11-24 00:12:34,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:34,822 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:12:34,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-24 00:12:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:35,508 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:12:35,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:35,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:12:35,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:12:35,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:12:35,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:12:35,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:12:35,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-24 00:12:35,771 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:35,772 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 44 [2024-11-24 00:12:35,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:35,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 50 [2024-11-24 00:12:36,140 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:12:36,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:36,140 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1838201492] [2024-11-24 00:12:36,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1838201492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:36,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:12:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159456626] [2024-11-24 00:12:36,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:36,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:12:36,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:36,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:12:36,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:12:36,142 INFO L87 Difference]: Start difference. First operand 337 states and 415 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:39,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:12:43,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:43,347 INFO L93 Difference]: Finished difference Result 631 states and 768 transitions. [2024-11-24 00:12:43,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:12:43,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-11-24 00:12:43,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:43,352 INFO L225 Difference]: With dead ends: 631 [2024-11-24 00:12:43,352 INFO L226 Difference]: Without dead ends: 371 [2024-11-24 00:12:43,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:12:43,353 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 173 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:43,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 444 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-24 00:12:43,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-24 00:12:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 337. [2024-11-24 00:12:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 260 states have (on average 1.1846153846153846) internal successors, (308), 261 states have internal predecessors, (308), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-24 00:12:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 414 transitions. [2024-11-24 00:12:43,470 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 414 transitions. Word has length 176 [2024-11-24 00:12:43,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:43,470 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 414 transitions. [2024-11-24 00:12:43,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 414 transitions. [2024-11-24 00:12:43,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:12:43,473 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:43,473 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:43,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-24 00:12:43,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:43,674 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:43,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1572522167, now seen corresponding path program 1 times [2024-11-24 00:12:43,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:43,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348327126] [2024-11-24 00:12:43,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:43,675 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 [2024-11-24 00:12:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:43,677 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:12:43,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:12:44,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:44,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:12:44,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:44,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:12:44,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-24 00:12:44,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 25 [2024-11-24 00:12:44,588 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:44,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 39 [2024-11-24 00:12:44,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:44,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 39 [2024-11-24 00:12:44,963 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-24 00:12:44,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:12:44,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:12:44,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348327126] [2024-11-24 00:12:44,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348327126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:12:44,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:12:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:12:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599724356] [2024-11-24 00:12:44,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:12:44,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:12:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:12:44,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:12:44,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:12:44,966 INFO L87 Difference]: Start difference. First operand 337 states and 414 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:46,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:47,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:12:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:12:55,810 INFO L93 Difference]: Finished difference Result 955 states and 1140 transitions. [2024-11-24 00:12:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:12:55,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 176 [2024-11-24 00:12:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:12:55,815 INFO L225 Difference]: With dead ends: 955 [2024-11-24 00:12:55,816 INFO L226 Difference]: Without dead ends: 695 [2024-11-24 00:12:55,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=480, Unknown=0, NotChecked=0, Total=600 [2024-11-24 00:12:55,817 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 365 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:12:55,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 756 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-24 00:12:55,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-24 00:12:55,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 383. [2024-11-24 00:12:55,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 303 states have (on average 1.198019801980198) internal successors, (363), 304 states have internal predecessors, (363), 55 states have call successors, (55), 24 states have call predecessors, (55), 24 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-24 00:12:55,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 473 transitions. [2024-11-24 00:12:55,913 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 473 transitions. Word has length 176 [2024-11-24 00:12:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:12:55,914 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 473 transitions. [2024-11-24 00:12:55,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 11 states have internal predecessors, (77), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:12:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 473 transitions. [2024-11-24 00:12:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-24 00:12:55,916 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:12:55,916 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:12:55,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2024-11-24 00:12:56,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:12:56,117 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:12:56,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:12:56,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1830687605, now seen corresponding path program 1 times [2024-11-24 00:12:56,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:12:56,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794962343] [2024-11-24 00:12:56,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:12:56,118 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 [2024-11-24 00:12:56,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:12:56,120 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:12:56,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-24 00:12:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:12:56,821 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 00:12:56,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:12:56,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:12:56,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 00:12:57,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:57,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-24 00:12:57,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:57,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2024-11-24 00:12:57,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-24 00:12:58,005 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:58,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-24 00:12:58,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:58,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-24 00:12:59,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:59,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 67 [2024-11-24 00:12:59,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 28 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 88 [2024-11-24 00:12:59,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:12:59,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 134 treesize of output 112 [2024-11-24 00:13:00,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:00,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 113 treesize of output 47 [2024-11-24 00:13:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 604 proven. 48 refuted. 0 times theorem prover too weak. 188 trivial. 0 not checked. [2024-11-24 00:13:00,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:01,190 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:13:01,190 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:01,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794962343] [2024-11-24 00:13:01,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794962343] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:01,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:13:01,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-24 00:13:01,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84042994] [2024-11-24 00:13:01,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:13:01,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:13:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:01,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:13:01,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:13:01,193 INFO L87 Difference]: Start difference. First operand 383 states and 473 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:13:02,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:13:16,277 INFO L93 Difference]: Finished difference Result 703 states and 860 transitions. [2024-11-24 00:13:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:13:16,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 176 [2024-11-24 00:13:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:13:16,284 INFO L225 Difference]: With dead ends: 703 [2024-11-24 00:13:16,285 INFO L226 Difference]: Without dead ends: 405 [2024-11-24 00:13:16,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:13:16,286 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 166 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:13:16,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 422 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2024-11-24 00:13:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-24 00:13:16,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 387. [2024-11-24 00:13:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 306 states have (on average 1.1895424836601307) internal successors, (364), 307 states have internal predecessors, (364), 55 states have call successors, (55), 25 states have call predecessors, (55), 25 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2024-11-24 00:13:16,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 474 transitions. [2024-11-24 00:13:16,397 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 474 transitions. Word has length 176 [2024-11-24 00:13:16,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:13:16,397 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 474 transitions. [2024-11-24 00:13:16,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:13:16,397 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 474 transitions. [2024-11-24 00:13:16,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-24 00:13:16,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:13:16,398 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:13:16,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-24 00:13:16,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:13:16,599 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:13:16,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:13:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1265518269, now seen corresponding path program 1 times [2024-11-24 00:13:16,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:13:16,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695899395] [2024-11-24 00:13:16,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:16,600 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 [2024-11-24 00:13:16,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:13:16,601 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:13:16,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-24 00:13:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:17,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:13:17,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:17,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:13:17,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 42 [2024-11-24 00:13:18,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:18,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 45 [2024-11-24 00:13:18,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:18,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 45 [2024-11-24 00:13:18,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:18,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 55 [2024-11-24 00:13:19,144 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:19,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 93 treesize of output 68 [2024-11-24 00:13:19,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:19,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 71 [2024-11-24 00:13:20,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:20,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 71 [2024-11-24 00:13:20,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:20,579 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 81 [2024-11-24 00:13:21,364 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:21,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 159 treesize of output 111 [2024-11-24 00:13:21,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:21,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 180 treesize of output 116 [2024-11-24 00:13:21,873 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:21,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 173 treesize of output 119 [2024-11-24 00:13:22,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:22,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 254 treesize of output 98 [2024-11-24 00:13:22,445 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 368 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-24 00:13:22,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:22,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:13:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695899395] [2024-11-24 00:13:22,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695899395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1300244914] [2024-11-24 00:13:22,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:13:22,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:13:22,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:13:22,979 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:13:22,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-24 00:13:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:13:26,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-24 00:13:26,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:13:27,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-24 00:13:28,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-11-24 00:13:28,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-11-24 00:13:28,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 38 [2024-11-24 00:13:29,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:29,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2024-11-24 00:13:29,922 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:29,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 60 [2024-11-24 00:13:30,547 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:30,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 83 treesize of output 71 [2024-11-24 00:13:31,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:31,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 82 [2024-11-24 00:13:32,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:32,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 85 [2024-11-24 00:13:32,867 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:32,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 141 treesize of output 112 [2024-11-24 00:13:33,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:33,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 45 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 152 treesize of output 115 [2024-11-24 00:13:33,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:33,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 149 treesize of output 118 [2024-11-24 00:13:33,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:13:33,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 222 treesize of output 102 [2024-11-24 00:13:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 432 proven. 320 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 00:13:33,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:13:34,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1300244914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:13:34,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:13:34,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2024-11-24 00:13:34,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380587196] [2024-11-24 00:13:34,169 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:13:34,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 00:13:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:13:34,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 00:13:34,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1199, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 00:13:34,172 INFO L87 Difference]: Start difference. First operand 387 states and 474 transitions. Second operand has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-24 00:13:35,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:36,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:38,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:40,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:41,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:46,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:47,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:13:49,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:51,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:13:53,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:12,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:22,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:30,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:30,063 INFO L93 Difference]: Finished difference Result 800 states and 975 transitions. [2024-11-24 00:14:30,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-24 00:14:30,064 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) Word has length 177 [2024-11-24 00:14:30,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:30,068 INFO L225 Difference]: With dead ends: 800 [2024-11-24 00:14:30,068 INFO L226 Difference]: Without dead ends: 498 [2024-11-24 00:14:30,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 368 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1393 ImplicationChecksByTransitivity, 11.6s TimeCoverageRelationStatistics Valid=1180, Invalid=4672, Unknown=0, NotChecked=0, Total=5852 [2024-11-24 00:14:30,071 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 658 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:30,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1215 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 48.7s Time] [2024-11-24 00:14:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2024-11-24 00:14:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 288. [2024-11-24 00:14:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 234 states have internal predecessors, (279), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:14:30,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 355 transitions. [2024-11-24 00:14:30,195 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 355 transitions. Word has length 177 [2024-11-24 00:14:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:30,195 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 355 transitions. [2024-11-24 00:14:30,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 5.34375) internal successors, (171), 30 states have internal predecessors, (171), 14 states have call successors, (42), 14 states have call predecessors, (42), 14 states have return successors, (42), 13 states have call predecessors, (42), 14 states have call successors, (42) [2024-11-24 00:14:30,196 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 355 transitions. [2024-11-24 00:14:30,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-24 00:14:30,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:30,198 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:30,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Ended with exit code 0 [2024-11-24 00:14:30,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-24 00:14:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 00:14:30,599 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:30,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:30,600 INFO L85 PathProgramCache]: Analyzing trace with hash 628571515, now seen corresponding path program 1 times [2024-11-24 00:14:30,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:30,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899066789] [2024-11-24 00:14:30,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:30,601 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 [2024-11-24 00:14:30,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:30,604 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:14:30,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-24 00:14:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:31,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:14:31,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:14:31,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:14:31,222 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:31,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899066789] [2024-11-24 00:14:31,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899066789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:31,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:31,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:14:31,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930222277] [2024-11-24 00:14:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:31,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:14:31,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:31,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:14:31,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:14:31,224 INFO L87 Difference]: Start difference. First operand 288 states and 355 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:14:32,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:39,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:39,338 INFO L93 Difference]: Finished difference Result 633 states and 774 transitions. [2024-11-24 00:14:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:14:39,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 178 [2024-11-24 00:14:39,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:39,341 INFO L225 Difference]: With dead ends: 633 [2024-11-24 00:14:39,341 INFO L226 Difference]: Without dead ends: 430 [2024-11-24 00:14:39,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:14:39,343 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 115 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:39,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 630 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-24 00:14:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-24 00:14:39,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 297. [2024-11-24 00:14:39,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 242 states have (on average 1.1983471074380165) internal successors, (290), 243 states have internal predecessors, (290), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-24 00:14:39,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 366 transitions. [2024-11-24 00:14:39,456 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 366 transitions. Word has length 178 [2024-11-24 00:14:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:39,456 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 366 transitions. [2024-11-24 00:14:39,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:14:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 366 transitions. [2024-11-24 00:14:39,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-24 00:14:39,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:39,458 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:39,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-24 00:14:39,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:39,658 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:39,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:39,659 INFO L85 PathProgramCache]: Analyzing trace with hash -51815295, now seen corresponding path program 1 times [2024-11-24 00:14:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:39,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583841956] [2024-11-24 00:14:39,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:39,659 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 [2024-11-24 00:14:39,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:39,661 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:14:39,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Waiting until timeout for monitored process [2024-11-24 00:14:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:14:40,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:14:40,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:14:40,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:14:40,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-24 00:14:40,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 25 [2024-11-24 00:14:40,599 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:40,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 60 [2024-11-24 00:14:40,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:40,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 70 [2024-11-24 00:14:41,044 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:14:41,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 32 [2024-11-24 00:14:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-24 00:14:41,080 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:14:41,080 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:14:41,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583841956] [2024-11-24 00:14:41,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583841956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:14:41,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:14:41,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:14:41,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868204960] [2024-11-24 00:14:41,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:14:41,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:14:41,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:14:41,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:14:41,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:14:41,082 INFO L87 Difference]: Start difference. First operand 297 states and 366 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:14:45,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:46,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:14:57,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:14:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:14:59,064 INFO L93 Difference]: Finished difference Result 730 states and 873 transitions. [2024-11-24 00:14:59,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-24 00:14:59,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 179 [2024-11-24 00:14:59,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:14:59,070 INFO L225 Difference]: With dead ends: 730 [2024-11-24 00:14:59,070 INFO L226 Difference]: Without dead ends: 518 [2024-11-24 00:14:59,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2024-11-24 00:14:59,074 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 325 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 91 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:14:59,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 694 Invalid, 1349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1256 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2024-11-24 00:14:59,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-24 00:14:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 348. [2024-11-24 00:14:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 287 states have (on average 1.2020905923344947) internal successors, (345), 289 states have internal predecessors, (345), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:14:59,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 429 transitions. [2024-11-24 00:14:59,202 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 429 transitions. Word has length 179 [2024-11-24 00:14:59,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:14:59,202 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 429 transitions. [2024-11-24 00:14:59,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 2 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-24 00:14:59,202 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 429 transitions. [2024-11-24 00:14:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:14:59,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:14:59,204 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:14:59,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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)] Ended with exit code 0 [2024-11-24 00:14:59,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:14:59,404 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:14:59,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:14:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1738994867, now seen corresponding path program 1 times [2024-11-24 00:14:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:14:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687424458] [2024-11-24 00:14:59,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:14:59,406 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 [2024-11-24 00:14:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:14:59,407 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:14:59,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:15:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:00,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 00:15:00,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:00,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:15:00,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:15:00,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:15:00,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:15:00,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:15:00,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 00:15:00,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 00:15:00,627 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:00,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 00:15:00,908 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:00,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 40 [2024-11-24 00:15:00,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:00,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 50 [2024-11-24 00:15:01,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:01,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-24 00:15:01,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:01,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 94 [2024-11-24 00:15:02,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:02,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 173 treesize of output 83 [2024-11-24 00:15:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-24 00:15:02,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:15:02,585 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:15:02,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687424458] [2024-11-24 00:15:02,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687424458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:15:02,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:15:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 00:15:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160961063] [2024-11-24 00:15:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:02,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:15:02,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:15:02,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:15:02,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:15:02,587 INFO L87 Difference]: Start difference. First operand 348 states and 429 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:15:05,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:07,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:09,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:11,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:12,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:15:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:27,911 INFO L93 Difference]: Finished difference Result 867 states and 1056 transitions. [2024-11-24 00:15:27,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:15:27,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 181 [2024-11-24 00:15:27,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:27,920 INFO L225 Difference]: With dead ends: 867 [2024-11-24 00:15:27,920 INFO L226 Difference]: Without dead ends: 604 [2024-11-24 00:15:27,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:15:27,922 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 362 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 42 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:27,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1364 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1760 Invalid, 9 Unknown, 0 Unchecked, 24.4s Time] [2024-11-24 00:15:27,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-24 00:15:28,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 381. [2024-11-24 00:15:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 320 states have (on average 1.203125) internal successors, (385), 322 states have internal predecessors, (385), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:15:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 469 transitions. [2024-11-24 00:15:28,098 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 469 transitions. Word has length 181 [2024-11-24 00:15:28,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:28,099 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 469 transitions. [2024-11-24 00:15:28,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-24 00:15:28,099 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 469 transitions. [2024-11-24 00:15:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:15:28,101 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:28,101 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:15:28,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-24 00:15:28,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:15:28,302 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:28,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 717926513, now seen corresponding path program 1 times [2024-11-24 00:15:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:15:28,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021960660] [2024-11-24 00:15:28,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:28,304 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 [2024-11-24 00:15:28,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:15:28,306 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:15:28,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-24 00:15:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:29,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 00:15:29,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:29,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 00:15:29,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-24 00:15:30,421 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:30,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2024-11-24 00:15:30,956 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:30,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 52 [2024-11-24 00:15:31,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:31,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 52 [2024-11-24 00:15:31,785 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:31,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 52 [2024-11-24 00:15:31,822 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:31,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 62 [2024-11-24 00:15:31,992 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:31,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 65 [2024-11-24 00:15:32,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:32,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 91 [2024-11-24 00:15:32,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:32,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 48 [2024-11-24 00:15:33,118 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 477 proven. 72 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-24 00:15:33,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:15:33,684 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:15:33,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:15:33,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021960660] [2024-11-24 00:15:33,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021960660] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:15:33,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:15:33,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2024-11-24 00:15:33,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513340242] [2024-11-24 00:15:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:33,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:15:33,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:15:33,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:15:33,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:15:33,687 INFO L87 Difference]: Start difference. First operand 381 states and 469 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:15:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:37,720 INFO L93 Difference]: Finished difference Result 821 states and 1005 transitions. [2024-11-24 00:15:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:15:37,721 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-11-24 00:15:37,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:37,724 INFO L225 Difference]: With dead ends: 821 [2024-11-24 00:15:37,724 INFO L226 Difference]: Without dead ends: 525 [2024-11-24 00:15:37,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:15:37,726 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 172 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:37,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 371 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-24 00:15:37,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-24 00:15:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 381. [2024-11-24 00:15:37,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 320 states have (on average 1.196875) internal successors, (383), 322 states have internal predecessors, (383), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:15:37,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 467 transitions. [2024-11-24 00:15:37,897 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 467 transitions. Word has length 181 [2024-11-24 00:15:37,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:37,898 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 467 transitions. [2024-11-24 00:15:37,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:15:37,898 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 467 transitions. [2024-11-24 00:15:37,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:15:37,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:37,900 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:15:37,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-24 00:15:38,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:15:38,101 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:38,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:38,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1604981361, now seen corresponding path program 1 times [2024-11-24 00:15:38,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:15:38,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829716755] [2024-11-24 00:15:38,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:38,102 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 [2024-11-24 00:15:38,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:15:38,104 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:15:38,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-24 00:15:38,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:39,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 00:15:39,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:39,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:15:39,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2024-11-24 00:15:40,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:40,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 39 [2024-11-24 00:15:40,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:40,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 49 [2024-11-24 00:15:41,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:41,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 52 [2024-11-24 00:15:41,548 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:41,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 52 [2024-11-24 00:15:41,606 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:41,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 62 [2024-11-24 00:15:41,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:41,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 65 [2024-11-24 00:15:42,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:42,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 92 [2024-11-24 00:15:42,978 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:42,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 49 [2024-11-24 00:15:43,192 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 509 proven. 72 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-24 00:15:43,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:15:43,795 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:15:43,795 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:15:43,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829716755] [2024-11-24 00:15:43,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1829716755] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:15:43,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:15:43,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [24] total 27 [2024-11-24 00:15:43,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570188379] [2024-11-24 00:15:43,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:43,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:15:43,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:15:43,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:15:43,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=580, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:15:43,798 INFO L87 Difference]: Start difference. First operand 381 states and 467 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:15:45,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:15:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:15:50,288 INFO L93 Difference]: Finished difference Result 821 states and 1001 transitions. [2024-11-24 00:15:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:15:50,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-11-24 00:15:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:15:50,296 INFO L225 Difference]: With dead ends: 821 [2024-11-24 00:15:50,296 INFO L226 Difference]: Without dead ends: 525 [2024-11-24 00:15:50,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:15:50,300 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 96 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:15:50,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 613 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-24 00:15:50,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-24 00:15:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 381. [2024-11-24 00:15:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 320 states have (on average 1.190625) internal successors, (381), 322 states have internal predecessors, (381), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:15:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 465 transitions. [2024-11-24 00:15:50,426 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 465 transitions. Word has length 181 [2024-11-24 00:15:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:15:50,426 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 465 transitions. [2024-11-24 00:15:50,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:15:50,427 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 465 transitions. [2024-11-24 00:15:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-24 00:15:50,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:15:50,429 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:15:50,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2024-11-24 00:15:50,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:15:50,629 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:15:50,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:15:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 583913007, now seen corresponding path program 1 times [2024-11-24 00:15:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:15:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [69346072] [2024-11-24 00:15:50,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:15:50,631 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 [2024-11-24 00:15:50,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:15:50,632 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:15:50,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:15:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:15:51,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-24 00:15:51,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:15:51,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 00:15:51,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-24 00:15:52,177 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:52,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 00:15:52,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:52,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-24 00:15:53,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:53,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-24 00:15:53,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:53,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 00:15:54,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:54,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 00:15:54,484 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:54,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 00:15:55,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:55,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 66 [2024-11-24 00:15:55,064 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:55,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 87 treesize of output 76 [2024-11-24 00:15:55,315 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:55,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-24 00:15:55,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:55,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 111 [2024-11-24 00:15:57,110 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:15:57,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 193 treesize of output 91 [2024-11-24 00:15:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 663 proven. 45 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-24 00:15:57,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:15:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:15:58,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:15:58,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [69346072] [2024-11-24 00:15:58,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [69346072] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:15:58,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:15:58,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [21] total 28 [2024-11-24 00:15:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853952245] [2024-11-24 00:15:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:15:58,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:15:58,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:15:58,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:15:58,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:15:58,777 INFO L87 Difference]: Start difference. First operand 381 states and 465 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:16:00,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:01,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:02,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:04,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:05,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:16:12,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:12,642 INFO L93 Difference]: Finished difference Result 789 states and 961 transitions. [2024-11-24 00:16:12,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:16:12,643 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 181 [2024-11-24 00:16:12,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:12,645 INFO L225 Difference]: With dead ends: 789 [2024-11-24 00:16:12,645 INFO L226 Difference]: Without dead ends: 493 [2024-11-24 00:16:12,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=161, Invalid=1029, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:16:12,647 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 83 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:12,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1593 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2024-11-24 00:16:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-24 00:16:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 360. [2024-11-24 00:16:12,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 299 states have (on average 1.193979933110368) internal successors, (357), 301 states have internal predecessors, (357), 42 states have call successors, (42), 18 states have call predecessors, (42), 18 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 00:16:12,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 441 transitions. [2024-11-24 00:16:12,823 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 441 transitions. Word has length 181 [2024-11-24 00:16:12,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:12,823 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 441 transitions. [2024-11-24 00:16:12,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:16:12,824 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 441 transitions. [2024-11-24 00:16:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 00:16:12,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:16:12,834 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:16:12,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:16:13,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:16:13,034 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:16:13,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:16:13,035 INFO L85 PathProgramCache]: Analyzing trace with hash 996915148, now seen corresponding path program 1 times [2024-11-24 00:16:13,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:16:13,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760485452] [2024-11-24 00:16:13,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:16:13,035 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 [2024-11-24 00:16:13,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:16:13,037 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-24 00:16:13,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:16:14,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:16:14,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 00:16:14,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:16:14,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 00:16:14,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:16:14,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:16:14,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 00:16:14,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2024-11-24 00:16:15,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:15,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-24 00:16:16,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:16,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 60 [2024-11-24 00:16:16,712 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:16,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 60 [2024-11-24 00:16:16,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 81 [2024-11-24 00:16:17,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:16:17,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 129 treesize of output 98 [2024-11-24 00:16:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 637 proven. 48 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-24 00:16:17,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:16:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-24 00:16:18,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:16:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760485452] [2024-11-24 00:16:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760485452] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:16:18,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:16:18,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-24 00:16:18,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094318596] [2024-11-24 00:16:18,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:16:18,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:16:18,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:16:18,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:16:18,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:16:18,282 INFO L87 Difference]: Start difference. First operand 360 states and 441 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:16:32,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:16:32,166 INFO L93 Difference]: Finished difference Result 600 states and 726 transitions. [2024-11-24 00:16:32,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:16:32,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 183 [2024-11-24 00:16:32,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:16:32,169 INFO L225 Difference]: With dead ends: 600 [2024-11-24 00:16:32,169 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 00:16:32,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-24 00:16:32,170 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 116 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:16:32,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 324 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2024-11-24 00:16:32,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 00:16:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 00:16:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:16:32,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 00:16:32,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 183 [2024-11-24 00:16:32,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:16:32,173 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 00:16:32,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-24 00:16:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 00:16:32,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 00:16:32,176 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:16:32,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-24 00:16:32,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b98ae6a-dee3-47a5-8490-3e13a8a9aedf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:16:32,380 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:16:32,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 00:16:44,986 WARN L286 SmtUtils]: Spent 9.35s on a formula simplification. DAG size of input: 178 DAG size of output: 215 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:16:57,777 WARN L286 SmtUtils]: Spent 8.35s on a formula simplification. DAG size of input: 343 DAG size of output: 367 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:04,147 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 322 DAG size of output: 350 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:13,563 WARN L286 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 322 DAG size of output: 350 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:19,507 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 322 DAG size of output: 350 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:25,382 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 324 DAG size of output: 331 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:31,673 WARN L286 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 324 DAG size of output: 331 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:17:55,387 WARN L286 SmtUtils]: Spent 13.94s on a formula simplification. DAG size of input: 192 DAG size of output: 203 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:18:08,614 WARN L286 SmtUtils]: Spent 13.09s on a formula simplification. DAG size of input: 193 DAG size of output: 205 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:18:33,576 WARN L286 SmtUtils]: Spent 5.86s on a formula simplification. DAG size of input: 324 DAG size of output: 331 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:18:45,422 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 324 DAG size of output: 331 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:18:57,203 WARN L286 SmtUtils]: Spent 8.13s on a formula simplification. DAG size of input: 178 DAG size of output: 215 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:02,386 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 322 DAG size of output: 350 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:22,515 WARN L286 SmtUtils]: Spent 20.13s on a formula simplification. DAG size of input: 200 DAG size of output: 254 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:28,852 WARN L286 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 330 DAG size of output: 328 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:36,471 WARN L286 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 330 DAG size of output: 328 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:48,027 WARN L286 SmtUtils]: Spent 11.55s on a formula simplification. DAG size of input: 250 DAG size of output: 272 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:19:53,242 WARN L286 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 234 DAG size of output: 245 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:20:33,144 WARN L286 SmtUtils]: Spent 38.95s on a formula simplification. DAG size of input: 211 DAG size of output: 241 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:20:40,950 WARN L286 SmtUtils]: Spent 6.72s on a formula simplification. DAG size of input: 189 DAG size of output: 189 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:21:03,176 WARN L286 SmtUtils]: Spent 22.13s on a formula simplification. DAG size of input: 198 DAG size of output: 200 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:21:26,763 WARN L286 SmtUtils]: Spent 22.52s on a formula simplification. DAG size of input: 199 DAG size of output: 213 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:03,539 WARN L286 SmtUtils]: Spent 36.78s on a formula simplification. DAG size of input: 211 DAG size of output: 241 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:15,677 WARN L286 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 250 DAG size of output: 272 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:22,389 WARN L286 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 190 DAG size of output: 207 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:30,608 WARN L286 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 190 DAG size of output: 207 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:37,553 WARN L286 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 189 DAG size of output: 189 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-24 00:22:43,889 WARN L286 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 330 DAG size of output: 328 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)