./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:31:22,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:31:22,916 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:31:22,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:31:22,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:31:22,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:31:22,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:31:22,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:31:22,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:31:22,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:31:22,978 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:31:22,978 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:31:22,978 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:31:22,979 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:31:22,979 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:31:22,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:31:22,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:31:22,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:31:22,983 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:31:22,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:31:22,984 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c [2024-11-14 04:31:23,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:31:23,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:31:23,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:31:23,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:31:23,417 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:31:23,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i Unable to find full path for "g++" [2024-11-14 04:31:25,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:31:25,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:31:25,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-11-14 04:31:25,866 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/2f32d79fc/3083a56a717443638da9b4995a5d6efe/FLAGc7434db38 [2024-11-14 04:31:26,094 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/2f32d79fc/3083a56a717443638da9b4995a5d6efe [2024-11-14 04:31:26,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:31:26,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:31:26,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:31:26,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:31:26,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:31:26,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa49c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26, skipping insertion in model container [2024-11-14 04:31:26,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,151 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:31:26,358 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-14 04:31:26,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:31:26,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:31:26,487 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-14 04:31:26,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:31:26,555 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:31:26,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26 WrapperNode [2024-11-14 04:31:26,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:31:26,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:31:26,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:31:26,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:31:26,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,671 INFO L138 Inliner]: procedures = 27, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 460 [2024-11-14 04:31:26,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:31:26,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:31:26,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:31:26,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:31:26,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:31:26,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:31:26,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:31:26,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:31:26,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (1/1) ... [2024-11-14 04:31:26,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:31:26,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:26,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:31:26,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:31:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:31:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:31:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:31:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:31:26,855 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:31:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:31:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:31:26,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:31:26,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:31:27,040 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:31:27,042 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:31:27,785 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-14 04:31:27,786 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:31:28,369 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:31:28,369 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:31:28,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:31:28 BoogieIcfgContainer [2024-11-14 04:31:28,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:31:28,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:31:28,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:31:28,378 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:31:28,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:31:26" (1/3) ... [2024-11-14 04:31:28,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5e9662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:31:28, skipping insertion in model container [2024-11-14 04:31:28,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:26" (2/3) ... [2024-11-14 04:31:28,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5e9662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:31:28, skipping insertion in model container [2024-11-14 04:31:28,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:31:28" (3/3) ... [2024-11-14 04:31:28,382 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2024-11-14 04:31:28,401 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:31:28,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-19.i that has 2 procedures, 43 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:31:28,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:31:28,487 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34e769a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:31:28,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:31:28,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:31:28,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 04:31:28,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:28,503 INFO L215 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:28,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:28,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:28,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2000291065, now seen corresponding path program 1 times [2024-11-14 04:31:28,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:28,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981730650] [2024-11-14 04:31:28,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:28,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-14 04:31:30,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172384553] [2024-11-14 04:31:30,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:30,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:30,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:30,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:30,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:31:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:31:32,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:31:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:31:32,946 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:31:32,949 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:31:32,950 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:31:32,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:31:33,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-14 04:31:33,157 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:31:33,233 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:31:33,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:31:33 BoogieIcfgContainer [2024-11-14 04:31:33,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:31:33,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:31:33,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:31:33,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:31:33,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:31:28" (3/4) ... [2024-11-14 04:31:33,248 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:31:33,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:31:33,252 INFO L158 Benchmark]: Toolchain (without parser) took 7149.29ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 126.7MB in the beginning and 195.1MB in the end (delta: -68.4MB). Peak memory consumption was 196.4MB. Max. memory is 16.1GB. [2024-11-14 04:31:33,254 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:31:33,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.24ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 111.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:31:33,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.26ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 107.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:31:33,257 INFO L158 Benchmark]: Boogie Preprocessor took 90.49ms. Allocated memory is still 167.8MB. Free memory was 107.3MB in the beginning and 104.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:31:33,257 INFO L158 Benchmark]: RCFGBuilder took 1606.89ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 71.6MB in the end (delta: 32.9MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2024-11-14 04:31:33,258 INFO L158 Benchmark]: TraceAbstraction took 4869.28ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 70.9MB in the beginning and 195.2MB in the end (delta: -124.2MB). Peak memory consumption was 139.7MB. Max. memory is 16.1GB. [2024-11-14 04:31:33,260 INFO L158 Benchmark]: Witness Printer took 6.12ms. Allocated memory is still 436.2MB. Free memory was 195.2MB in the beginning and 195.1MB in the end (delta: 33.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:31:33,262 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 167.8MB. Free memory is still 106.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 452.24ms. Allocated memory is still 167.8MB. Free memory was 126.7MB in the beginning and 111.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.26ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 107.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 90.49ms. Allocated memory is still 167.8MB. Free memory was 107.3MB in the beginning and 104.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1606.89ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 71.6MB in the end (delta: 32.9MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4869.28ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 70.9MB in the beginning and 195.2MB in the end (delta: -124.2MB). Peak memory consumption was 139.7MB. Max. memory is 16.1GB. * Witness Printer took 6.12ms. Allocated memory is still 436.2MB. Free memory was 195.2MB in the beginning and 195.1MB in the end (delta: 33.0kB). 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 shiftLeft at line 74. Possible FailurePath: [L36] unsigned char isInitial = 0; [L37-L50] struct WrapperStruct00 WrapperStruct00 = { 8, 128, 64, 1, 5, 4, 100, 1, -8, 10, -25, -16 }; [L51] signed long int last_1_WrapperStruct00_var_1_11 = 10; [L117] isInitial = 1 [L118] FCALL initially() [L119] COND TRUE 1 [L120] CALL updateLastVariables() [L110] EXPR WrapperStruct00.var_1_11 [L110] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L120] RET updateLastVariables() [L121] CALL updateVariables() [L83] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L84] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L84] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L86] WrapperStruct00.var_1_3 = __VERIFIER_nondet_uchar() [L87] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L87] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L89] WrapperStruct00.var_1_4 = __VERIFIER_nondet_ulong() [L90] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 12) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L92] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ulong() [L93] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 11) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L95] WrapperStruct00.var_1_7 = __VERIFIER_nondet_char() [L96] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L98] WrapperStruct00.var_1_8 = __VERIFIER_nondet_char() [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L101] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L104] WrapperStruct00.var_1_12 = __VERIFIER_nondet_long() [L105] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -2147483648) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(WrapperStruct00.var_1_12 != 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L121] RET updateVariables() [L122] CALL step() [L55] EXPR WrapperStruct00.var_1_7 [L55] EXPR WrapperStruct00.var_1_3 [L55] COND TRUE WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3 [L56] EXPR WrapperStruct00.var_1_7 [L56] COND TRUE last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7 [L57] EXPR WrapperStruct00.var_1_3 [L57] EXPR WrapperStruct00.var_1_8 [L57] WrapperStruct00.var_1_10 = (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8) [L64] EXPR WrapperStruct00.var_1_7 [L64] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_7 [L65] EXPR WrapperStruct00.var_1_2 [L65] EXPR WrapperStruct00.var_1_12 [L65] signed long int stepLocal_1 = WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12; [L66] EXPR WrapperStruct00.var_1_10 [L66] EXPR WrapperStruct00.var_1_13 [L66] EXPR WrapperStruct00.var_1_8 [L66] COND TRUE ((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > stepLocal_1 [L67] WrapperStruct00.var_1_9 [L67] COND TRUE WrapperStruct00.var_1_9 [L68] EXPR WrapperStruct00.var_1_2 [L68] WrapperStruct00.var_1_11 = WrapperStruct00.var_1_2 [L73] EXPR WrapperStruct00.var_1_11 [L73] signed long int stepLocal_0 = WrapperStruct00.var_1_11; [L74] EXPR WrapperStruct00.var_1_2 [L74] EXPR WrapperStruct00.var_1_3 [L74] EXPR WrapperStruct00.var_1_4 [L74] EXPR WrapperStruct00.var_1_5 [L74] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L74] COND TRUE ((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= stepLocal_0 [L75] EXPR WrapperStruct00.var_1_4 [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR WrapperStruct00.var_1_8 [L75] EXPR ((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8) [L75] EXPR ((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))) [L75] WrapperStruct00.var_1_1 = ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))) [L122] RET step() [L123] CALL, EXPR property() [L113] EXPR WrapperStruct00.var_1_2 [L113] EXPR WrapperStruct00.var_1_3 [L113] EXPR WrapperStruct00.var_1_4 [L113] EXPR WrapperStruct00.var_1_5 [L113] EXPR (WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5) [L113] EXPR WrapperStruct00.var_1_11 [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) [L113] EXPR WrapperStruct00.var_1_9 [L113] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1 [L113] EXPR WrapperStruct00.var_1_1 [L113] EXPR WrapperStruct00.var_1_5 [L113] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1 [L113] EXPR (((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1) [L113] EXPR ((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1)) [L113] EXPR (((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7))) [L113] EXPR ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) [L113-L114] return ((((((WrapperStruct00.var_1_2 - WrapperStruct00.var_1_3) << (WrapperStruct00.var_1_4 + WrapperStruct00.var_1_5)) <= WrapperStruct00.var_1_11) ? (WrapperStruct00.var_1_1 == ((signed char) ((((WrapperStruct00.var_1_4) > (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8))))) ? (WrapperStruct00.var_1_4) : (((((WrapperStruct00.var_1_8) < 0 ) ? -(WrapperStruct00.var_1_8) : (WrapperStruct00.var_1_8)))))))) : (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_1 == ((signed char) WrapperStruct00.var_1_5)) : 1)) && ((WrapperStruct00.var_1_7 < WrapperStruct00.var_1_3) ? ((last_1_WrapperStruct00_var_1_11 > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) (WrapperStruct00.var_1_3 - WrapperStruct00.var_1_8))) : 1) : (((WrapperStruct00.var_1_8 + ((((WrapperStruct00.var_1_2) < 0 ) ? -(WrapperStruct00.var_1_2) : (WrapperStruct00.var_1_2)))) > WrapperStruct00.var_1_7) ? (WrapperStruct00.var_1_10 == ((signed long int) WrapperStruct00.var_1_8)) : 1))) && ((((WrapperStruct00.var_1_10 * WrapperStruct00.var_1_13) + WrapperStruct00.var_1_8) > (WrapperStruct00.var_1_2 / WrapperStruct00.var_1_12)) ? (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_2)) : 1) : (WrapperStruct00.var_1_11 == ((signed long int) WrapperStruct00.var_1_7)))) && (WrapperStruct00.var_1_13 == ((signed long int) WrapperStruct00.var_1_7)) ; [L123] RET, EXPR property() [L123] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 04:31:33,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:31:36,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:31:36,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 04:31:36,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:31:36,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:31:36,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:31:36,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:31:36,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:31:36,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:31:36,617 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:31:36,617 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:31:36,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:31:36,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:31:36,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:31:36,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:31:36,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:31:36,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:31:36,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:31:36,620 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:31:36,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:31:36,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:31:36,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:31:36,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:31:36,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:31:36,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:31:36,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3a2d291e2452542ab6962635da2f74c802677a527b9a558cac3248bce42ee2c [2024-11-14 04:31:37,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:31:37,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:31:37,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:31:37,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:31:37,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:31:37,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i Unable to find full path for "g++" [2024-11-14 04:31:39,118 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:31:39,361 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:31:39,362 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i [2024-11-14 04:31:39,371 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/43f067248/31ed98739b394b1eae72a1cf55dac60b/FLAGe77cc3b5a [2024-11-14 04:31:39,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/data/43f067248/31ed98739b394b1eae72a1cf55dac60b [2024-11-14 04:31:39,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:31:39,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:31:39,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:31:39,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:31:39,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:31:39,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:31:39" (1/1) ... [2024-11-14 04:31:39,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e2bacd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:39, skipping insertion in model container [2024-11-14 04:31:39,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:31:39" (1/1) ... [2024-11-14 04:31:39,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:31:39,961 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-14 04:31:40,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:31:40,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:31:40,115 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_cc5e75f7-4e26-44ac-a3b9-08855644ef27/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-19.i[916,929] [2024-11-14 04:31:40,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:31:40,258 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:31:40,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40 WrapperNode [2024-11-14 04:31:40,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:31:40,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:31:40,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:31:40,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:31:40,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,370 INFO L138 Inliner]: procedures = 31, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 443 [2024-11-14 04:31:40,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:31:40,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:31:40,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:31:40,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:31:40,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:31:40,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:31:40,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:31:40,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:31:40,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (1/1) ... [2024-11-14 04:31:40,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:31:40,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:40,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:31:40,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:31:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:31:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 04:31:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:31:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:31:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2024-11-14 04:31:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2024-11-14 04:31:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 04:31:40,543 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 04:31:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:31:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:31:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 04:31:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:31:40,710 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:31:40,713 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:31:41,859 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-11-14 04:31:41,859 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:31:41,881 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:31:41,881 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:31:41,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:31:41 BoogieIcfgContainer [2024-11-14 04:31:41,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:31:41,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:31:41,887 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:31:41,892 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:31:41,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:31:39" (1/3) ... [2024-11-14 04:31:41,893 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cefd26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:31:41, skipping insertion in model container [2024-11-14 04:31:41,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:31:40" (2/3) ... [2024-11-14 04:31:41,894 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cefd26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:31:41, skipping insertion in model container [2024-11-14 04:31:41,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:31:41" (3/3) ... [2024-11-14 04:31:41,896 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-19.i [2024-11-14 04:31:41,914 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:31:41,916 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-19.i that has 2 procedures, 97 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:31:41,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:31:42,005 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3393916e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:31:42,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:31:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 78 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:31:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:31:42,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:42,025 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:42,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:42,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:42,032 INFO L85 PathProgramCache]: Analyzing trace with hash 68747915, now seen corresponding path program 1 times [2024-11-14 04:31:42,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:31:42,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [808809011] [2024-11-14 04:31:42,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:42,048 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 [2024-11-14 04:31:42,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:31:42,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:31:42,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:42,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 04:31:42,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:42,529 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2024-11-14 04:31:42,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:31:42,530 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:31:42,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [808809011] [2024-11-14 04:31:42,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [808809011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:31:42,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:31:42,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:31:42,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726500428] [2024-11-14 04:31:42,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:42,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:31:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:31:42,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:31:42,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:31:42,561 INFO L87 Difference]: Start difference. First operand has 97 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 78 states have internal predecessors, (107), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:31:42,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:42,591 INFO L93 Difference]: Finished difference Result 187 states and 293 transitions. [2024-11-14 04:31:42,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:31:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2024-11-14 04:31:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:42,601 INFO L225 Difference]: With dead ends: 187 [2024-11-14 04:31:42,601 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 04:31:42,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:31:42,610 INFO L432 NwaCegarLoop]: 132 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, 132 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 [2024-11-14 04:31:42,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:31:42,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 04:31:42,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-14 04:31:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 74 states have (on average 1.3243243243243243) internal successors, (98), 74 states have internal predecessors, (98), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:31:42,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2024-11-14 04:31:42,656 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 129 [2024-11-14 04:31:42,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:42,657 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2024-11-14 04:31:42,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:31:42,658 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2024-11-14 04:31:42,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:31:42,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:42,661 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:42,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:42,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:31:42,862 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:42,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash -164325207, now seen corresponding path program 1 times [2024-11-14 04:31:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:31:42,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725046964] [2024-11-14 04:31:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:42,865 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 [2024-11-14 04:31:42,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:31:42,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:31:42,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:43,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:31:43,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:43,346 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:31:43,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:31:43,346 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:31:43,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725046964] [2024-11-14 04:31:43,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725046964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:31:43,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:31:43,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:31:43,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283926910] [2024-11-14 04:31:43,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:43,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:31:43,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:31:43,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:31:43,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:31:43,350 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:43,475 INFO L93 Difference]: Finished difference Result 188 states and 268 transitions. [2024-11-14 04:31:43,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:31:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-14 04:31:43,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:43,478 INFO L225 Difference]: With dead ends: 188 [2024-11-14 04:31:43,479 INFO L226 Difference]: Without dead ends: 98 [2024-11-14 04:31:43,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:31:43,481 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:43,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 495 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:31:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-14 04:31:43,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2024-11-14 04:31:43,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 78 states have internal predecessors, (102), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-14 04:31:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2024-11-14 04:31:43,496 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 129 [2024-11-14 04:31:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:43,498 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2024-11-14 04:31:43,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2024-11-14 04:31:43,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:31:43,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:43,501 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:43,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:43,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:31:43,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:43,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash -162478165, now seen corresponding path program 1 times [2024-11-14 04:31:43,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:31:43,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568861456] [2024-11-14 04:31:43,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:43,704 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 [2024-11-14 04:31:43,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:31:43,707 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:31:43,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:44,091 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 04:31:44,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:44,136 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 [2024-11-14 04:31:44,239 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 29 treesize of output 13 [2024-11-14 04:31:44,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-14 04:31:44,581 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:44,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-14 04:31:44,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:44,774 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 39 treesize of output 26 [2024-11-14 04:31:45,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:45,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 51 [2024-11-14 04:31:45,223 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:45,224 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 64 treesize of output 75 [2024-11-14 04:31:45,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:45,383 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 81 treesize of output 89 [2024-11-14 04:31:45,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:45,713 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 96 treesize of output 101 [2024-11-14 04:31:46,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:46,133 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 136 treesize of output 58 [2024-11-14 04:31:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 338 proven. 27 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-14 04:31:46,340 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:31:46,780 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:31:46,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568861456] [2024-11-14 04:31:46,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568861456] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:46,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:31:46,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 17 [2024-11-14 04:31:46,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732502555] [2024-11-14 04:31:46,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:46,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:31:46,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:31:46,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:31:46,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:31:46,784 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:47,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:47,897 INFO L93 Difference]: Finished difference Result 251 states and 349 transitions. [2024-11-14 04:31:47,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:31:47,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-14 04:31:47,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:47,901 INFO L225 Difference]: With dead ends: 251 [2024-11-14 04:31:47,901 INFO L226 Difference]: Without dead ends: 157 [2024-11-14 04:31:47,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:31:47,907 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 65 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:47,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 586 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:31:47,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-14 04:31:47,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2024-11-14 04:31:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 128 states have (on average 1.296875) internal successors, (166), 129 states have internal predecessors, (166), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-14 04:31:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 212 transitions. [2024-11-14 04:31:47,945 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 212 transitions. Word has length 129 [2024-11-14 04:31:47,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:47,946 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 212 transitions. [2024-11-14 04:31:47,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:47,946 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 212 transitions. [2024-11-14 04:31:47,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-14 04:31:47,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:47,948 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:47,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:48,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:31:48,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:48,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1442341843, now seen corresponding path program 1 times [2024-11-14 04:31:48,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:31:48,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099130075] [2024-11-14 04:31:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:48,154 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 [2024-11-14 04:31:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:31:48,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:31:48,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:48,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:31:48,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:48,547 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:31:48,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:31:48,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:31:48,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099130075] [2024-11-14 04:31:48,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099130075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:31:48,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:31:48,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:31:48,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864107687] [2024-11-14 04:31:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:48,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:31:48,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:31:48,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:31:48,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:31:48,552 INFO L87 Difference]: Start difference. First operand 154 states and 212 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:49,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:49,773 INFO L93 Difference]: Finished difference Result 374 states and 514 transitions. [2024-11-14 04:31:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:31:49,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 129 [2024-11-14 04:31:49,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:49,778 INFO L225 Difference]: With dead ends: 374 [2024-11-14 04:31:49,778 INFO L226 Difference]: Without dead ends: 223 [2024-11-14 04:31:49,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:31:49,783 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 78 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:49,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 514 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:31:49,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-14 04:31:49,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2024-11-14 04:31:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 181 states have (on average 1.281767955801105) internal successors, (232), 183 states have internal predecessors, (232), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:31:49,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 302 transitions. [2024-11-14 04:31:49,825 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 302 transitions. Word has length 129 [2024-11-14 04:31:49,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:49,826 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 302 transitions. [2024-11-14 04:31:49,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:31:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 302 transitions. [2024-11-14 04:31:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-14 04:31:49,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:49,829 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:31:49,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 04:31:50,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:31:50,030 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:50,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash -90234188, now seen corresponding path program 1 times [2024-11-14 04:31:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:31:50,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765776230] [2024-11-14 04:31:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:50,032 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 [2024-11-14 04:31:50,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:31:50,034 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:31:50,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:31:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:50,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-14 04:31:50,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:50,439 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 69 treesize of output 68 [2024-11-14 04:31:50,790 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 98 treesize of output 82 [2024-11-14 04:31:51,236 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 [2024-11-14 04:31:51,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:51,769 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 42 treesize of output 29 [2024-11-14 04:31:52,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:52,550 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 51 treesize of output 41 [2024-11-14 04:31:53,494 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:53,495 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 [2024-11-14 04:31:54,628 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:54,628 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 77 [2024-11-14 04:31:55,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:55,444 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 81 treesize of output 80 [2024-11-14 04:31:56,050 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:56,051 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 81 treesize of output 80 [2024-11-14 04:31:57,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:57,868 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 124 treesize of output 108 [2024-11-14 04:31:58,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:58,195 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 130 treesize of output 117 [2024-11-14 04:31:58,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:31:58,553 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 142 treesize of output 132 [2024-11-14 04:32:00,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:00,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 198 treesize of output 150 [2024-11-14 04:32:01,003 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 04:32:01,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:02,154 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:02,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765776230] [2024-11-14 04:32:02,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765776230] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:02,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:02,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 38 [2024-11-14 04:32:02,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219471548] [2024-11-14 04:32:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:02,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:32:02,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:02,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:32:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:32:02,157 INFO L87 Difference]: Start difference. First operand 220 states and 302 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:04,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:04,082 INFO L93 Difference]: Finished difference Result 479 states and 656 transitions. [2024-11-14 04:32:04,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:32:04,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 130 [2024-11-14 04:32:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:04,092 INFO L225 Difference]: With dead ends: 479 [2024-11-14 04:32:04,093 INFO L226 Difference]: Without dead ends: 262 [2024-11-14 04:32:04,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=209, Invalid=1351, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:32:04,097 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 88 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:04,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 456 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:32:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-11-14 04:32:04,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 220. [2024-11-14 04:32:04,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 181 states have (on average 1.270718232044199) internal successors, (230), 183 states have internal predecessors, (230), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:32:04,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 300 transitions. [2024-11-14 04:32:04,138 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 300 transitions. Word has length 130 [2024-11-14 04:32:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:04,139 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 300 transitions. [2024-11-14 04:32:04,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:04,139 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 300 transitions. [2024-11-14 04:32:04,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-14 04:32:04,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:04,141 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:04,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-14 04:32:04,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:04,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:04,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:04,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1912119816, now seen corresponding path program 1 times [2024-11-14 04:32:04,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:04,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164090414] [2024-11-14 04:32:04,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:04,348 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 [2024-11-14 04:32:04,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:04,349 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:04,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:04,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:04,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-14 04:32:04,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:04,739 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 69 treesize of output 68 [2024-11-14 04:32:04,969 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 98 treesize of output 82 [2024-11-14 04:32:05,329 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 [2024-11-14 04:32:05,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:05,774 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 42 treesize of output 29 [2024-11-14 04:32:06,393 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:06,393 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 51 treesize of output 41 [2024-11-14 04:32:07,227 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:07,227 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 [2024-11-14 04:32:08,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:08,385 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 77 [2024-11-14 04:32:09,189 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:09,190 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 81 treesize of output 80 [2024-11-14 04:32:09,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:09,860 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 81 treesize of output 80 [2024-11-14 04:32:11,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:11,075 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 105 treesize of output 101 [2024-11-14 04:32:11,387 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:11,387 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 111 treesize of output 110 [2024-11-14 04:32:11,735 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:11,735 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 123 treesize of output 125 [2024-11-14 04:32:13,967 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:13,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 188 treesize of output 146 [2024-11-14 04:32:14,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:14,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 220 treesize of output 82 [2024-11-14 04:32:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 313 proven. 138 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 04:32:14,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:16,024 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:16,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164090414] [2024-11-14 04:32:16,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164090414] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:16,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:16,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 38 [2024-11-14 04:32:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272850936] [2024-11-14 04:32:16,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:16,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:32:16,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:16,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:32:16,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1215, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:32:16,027 INFO L87 Difference]: Start difference. First operand 220 states and 300 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:18,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:18,002 INFO L93 Difference]: Finished difference Result 475 states and 647 transitions. [2024-11-14 04:32:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:32:18,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 131 [2024-11-14 04:32:18,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:18,009 INFO L225 Difference]: With dead ends: 475 [2024-11-14 04:32:18,009 INFO L226 Difference]: Without dead ends: 258 [2024-11-14 04:32:18,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=205, Invalid=1355, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:32:18,011 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 136 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:18,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 418 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:32:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-14 04:32:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 223. [2024-11-14 04:32:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 184 states have (on average 1.266304347826087) internal successors, (233), 186 states have internal predecessors, (233), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-14 04:32:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 303 transitions. [2024-11-14 04:32:18,035 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 303 transitions. Word has length 131 [2024-11-14 04:32:18,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:18,037 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 303 transitions. [2024-11-14 04:32:18,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:18,038 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 303 transitions. [2024-11-14 04:32:18,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 04:32:18,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:18,040 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:18,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:18,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:18,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:18,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:18,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1830693966, now seen corresponding path program 1 times [2024-11-14 04:32:18,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:18,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246250456] [2024-11-14 04:32:18,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:18,241 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:18,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:18,244 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:18,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:18,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:32:18,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:18,545 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 23 treesize of output 11 [2024-11-14 04:32:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:18,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:32:18,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:18,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246250456] [2024-11-14 04:32:18,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246250456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:32:18,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:32:18,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:32:18,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244992793] [2024-11-14 04:32:18,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:18,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:32:18,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:32:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:32:18,612 INFO L87 Difference]: Start difference. First operand 223 states and 303 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:20,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:20,416 INFO L93 Difference]: Finished difference Result 604 states and 817 transitions. [2024-11-14 04:32:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:32:20,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-14 04:32:20,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:20,419 INFO L225 Difference]: With dead ends: 604 [2024-11-14 04:32:20,419 INFO L226 Difference]: Without dead ends: 384 [2024-11-14 04:32:20,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:32:20,421 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 68 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:20,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 367 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:32:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2024-11-14 04:32:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 380. [2024-11-14 04:32:20,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 312 states have (on average 1.2467948717948718) internal successors, (389), 317 states have internal predecessors, (389), 61 states have call successors, (61), 6 states have call predecessors, (61), 6 states have return successors, (61), 56 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 04:32:20,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 511 transitions. [2024-11-14 04:32:20,459 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 511 transitions. Word has length 132 [2024-11-14 04:32:20,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:20,460 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 511 transitions. [2024-11-14 04:32:20,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:20,460 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 511 transitions. [2024-11-14 04:32:20,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 04:32:20,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:20,462 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:20,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 04:32:20,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:20,663 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:20,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:20,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1243887952, now seen corresponding path program 1 times [2024-11-14 04:32:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069937505] [2024-11-14 04:32:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:20,664 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 [2024-11-14 04:32:20,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:20,666 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:20,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:21,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-14 04:32:21,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:21,030 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 69 treesize of output 68 [2024-11-14 04:32:21,296 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 98 treesize of output 82 [2024-11-14 04:32:21,613 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 [2024-11-14 04:32:22,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:22,264 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 52 treesize of output 33 [2024-11-14 04:32:23,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:23,030 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 61 treesize of output 45 [2024-11-14 04:32:23,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:23,958 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 70 treesize of output 57 [2024-11-14 04:32:25,228 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:25,228 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 76 treesize of output 81 [2024-11-14 04:32:26,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:26,006 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 75 treesize of output 89 [2024-11-14 04:32:26,972 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:26,973 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 90 treesize of output 92 [2024-11-14 04:32:28,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:28,726 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 133 treesize of output 120 [2024-11-14 04:32:29,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:29,114 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 139 treesize of output 129 [2024-11-14 04:32:29,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:29,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 151 treesize of output 144 [2024-11-14 04:32:31,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:31,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 207 treesize of output 162 [2024-11-14 04:32:31,631 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:31,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 239 treesize of output 89 [2024-11-14 04:32:31,937 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 358 proven. 138 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-14 04:32:31,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:33,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:33,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069937505] [2024-11-14 04:32:33,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069937505] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:33,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:33,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [35] total 39 [2024-11-14 04:32:33,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473153706] [2024-11-14 04:32:33,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:33,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:32:33,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:33,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:32:33,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1259, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:32:33,031 INFO L87 Difference]: Start difference. First operand 380 states and 511 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:34,170 INFO L93 Difference]: Finished difference Result 641 states and 864 transitions. [2024-11-14 04:32:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:32:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-14 04:32:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:34,174 INFO L225 Difference]: With dead ends: 641 [2024-11-14 04:32:34,174 INFO L226 Difference]: Without dead ends: 264 [2024-11-14 04:32:34,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=228, Invalid=1332, Unknown=0, NotChecked=0, Total=1560 [2024-11-14 04:32:34,180 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 80 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:34,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 305 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-14 04:32:34,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-14 04:32:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 260. [2024-11-14 04:32:34,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 210 states have (on average 1.2428571428571429) internal successors, (261), 213 states have internal predecessors, (261), 45 states have call successors, (45), 4 states have call predecessors, (45), 4 states have return successors, (45), 42 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:32:34,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 351 transitions. [2024-11-14 04:32:34,197 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 351 transitions. Word has length 132 [2024-11-14 04:32:34,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:34,198 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 351 transitions. [2024-11-14 04:32:34,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 351 transitions. [2024-11-14 04:32:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-14 04:32:34,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:34,200 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:34,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:34,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:34,401 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:34,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1505449479, now seen corresponding path program 1 times [2024-11-14 04:32:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:34,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643038104] [2024-11-14 04:32:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:34,401 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 [2024-11-14 04:32:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:34,404 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:34,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 04:32:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:34,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 04:32:34,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:34,714 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 [2024-11-14 04:32:34,776 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 29 treesize of output 13 [2024-11-14 04:32:34,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-14 04:32:34,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:34,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-14 04:32:35,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:35,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2024-11-14 04:32:35,274 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:35,274 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 49 treesize of output 39 [2024-11-14 04:32:35,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:35,555 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 62 treesize of output 73 [2024-11-14 04:32:35,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:35,661 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 79 treesize of output 87 [2024-11-14 04:32:35,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:35,797 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 96 treesize of output 101 [2024-11-14 04:32:36,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:36,273 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 111 treesize of output 113 [2024-11-14 04:32:36,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:36,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 124 treesize of output 44 [2024-11-14 04:32:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 398 proven. 33 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-14 04:32:36,965 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:37,467 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:37,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643038104] [2024-11-14 04:32:37,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643038104] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:37,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:37,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [17] total 22 [2024-11-14 04:32:37,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559151414] [2024-11-14 04:32:37,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:37,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:32:37,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:32:37,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:32:37,469 INFO L87 Difference]: Start difference. First operand 260 states and 351 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:39,103 INFO L93 Difference]: Finished difference Result 614 states and 825 transitions. [2024-11-14 04:32:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:32:39,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 132 [2024-11-14 04:32:39,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:39,111 INFO L225 Difference]: With dead ends: 614 [2024-11-14 04:32:39,111 INFO L226 Difference]: Without dead ends: 357 [2024-11-14 04:32:39,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2024-11-14 04:32:39,114 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 64 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:39,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 830 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:32:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-14 04:32:39,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2024-11-14 04:32:39,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 293 states have (on average 1.2491467576791808) internal successors, (366), 298 states have internal predecessors, (366), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 48 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:32:39,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 472 transitions. [2024-11-14 04:32:39,151 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 472 transitions. Word has length 132 [2024-11-14 04:32:39,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:39,152 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 472 transitions. [2024-11-14 04:32:39,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:39,152 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 472 transitions. [2024-11-14 04:32:39,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 04:32:39,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:39,154 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:39,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-14 04:32:39,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:39,355 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:39,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash 769496130, now seen corresponding path program 1 times [2024-11-14 04:32:39,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:39,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789513503] [2024-11-14 04:32:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:39,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:39,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:39,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:39,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:39,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 04:32:39,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:39,760 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 [2024-11-14 04:32:39,993 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 41 treesize of output 19 [2024-11-14 04:32:40,154 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 41 treesize of output 19 [2024-11-14 04:32:40,286 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 41 treesize of output 19 [2024-11-14 04:32:40,432 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 41 treesize of output 19 [2024-11-14 04:32:40,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:40,817 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 52 treesize of output 33 [2024-11-14 04:32:41,088 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:41,088 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 52 treesize of output 33 [2024-11-14 04:32:41,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:41,502 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 65 treesize of output 49 [2024-11-14 04:32:41,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:41,638 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 82 treesize of output 72 [2024-11-14 04:32:41,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:41,778 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 99 treesize of output 86 [2024-11-14 04:32:42,027 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:42,028 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 110 treesize of output 89 [2024-11-14 04:32:42,566 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 359 proven. 54 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-14 04:32:42,566 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:42,988 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:42,988 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:42,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789513503] [2024-11-14 04:32:42,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789513503] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:42,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:42,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 21 [2024-11-14 04:32:42,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734554759] [2024-11-14 04:32:42,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:42,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:32:42,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:42,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:32:42,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:32:42,990 INFO L87 Difference]: Start difference. First operand 353 states and 472 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:44,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:44,352 INFO L93 Difference]: Finished difference Result 1012 states and 1337 transitions. [2024-11-14 04:32:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:32:44,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-14 04:32:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:44,358 INFO L225 Difference]: With dead ends: 1012 [2024-11-14 04:32:44,358 INFO L226 Difference]: Without dead ends: 662 [2024-11-14 04:32:44,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 241 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:32:44,360 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 62 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:44,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 549 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 04:32:44,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-14 04:32:44,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 654. [2024-11-14 04:32:44,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 576 states have (on average 1.2482638888888888) internal successors, (719), 587 states have internal predecessors, (719), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:32:44,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 849 transitions. [2024-11-14 04:32:44,397 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 849 transitions. Word has length 133 [2024-11-14 04:32:44,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:44,397 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 849 transitions. [2024-11-14 04:32:44,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 849 transitions. [2024-11-14 04:32:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 04:32:44,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:44,400 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:44,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:44,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:44,601 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:44,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash -678840110, now seen corresponding path program 1 times [2024-11-14 04:32:44,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:44,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815702085] [2024-11-14 04:32:44,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:44,602 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 [2024-11-14 04:32:44,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:44,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:44,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:44,845 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:32:44,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:44,879 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 23 treesize of output 11 [2024-11-14 04:32:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:44,906 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:32:44,906 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:44,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815702085] [2024-11-14 04:32:44,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815702085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:32:44,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:32:44,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:32:44,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117247585] [2024-11-14 04:32:44,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:44,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:32:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:44,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:32:44,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:32:44,908 INFO L87 Difference]: Start difference. First operand 654 states and 849 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:46,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:46,474 INFO L93 Difference]: Finished difference Result 1732 states and 2245 transitions. [2024-11-14 04:32:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:32:46,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-14 04:32:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:46,484 INFO L225 Difference]: With dead ends: 1732 [2024-11-14 04:32:46,484 INFO L226 Difference]: Without dead ends: 1081 [2024-11-14 04:32:46,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:32:46,489 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 81 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:46,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 363 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 04:32:46,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-14 04:32:46,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 694. [2024-11-14 04:32:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 616 states have (on average 1.2613636363636365) internal successors, (777), 627 states have internal predecessors, (777), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:32:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 907 transitions. [2024-11-14 04:32:46,539 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 907 transitions. Word has length 133 [2024-11-14 04:32:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:46,539 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 907 transitions. [2024-11-14 04:32:46,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 907 transitions. [2024-11-14 04:32:46,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 04:32:46,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:46,551 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:46,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:46,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:46,751 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:46,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2027779284, now seen corresponding path program 1 times [2024-11-14 04:32:46,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:46,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475089300] [2024-11-14 04:32:46,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:46,752 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 [2024-11-14 04:32:46,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:46,754 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:46,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:32:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:47,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-14 04:32:47,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:32:47,064 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 69 treesize of output 68 [2024-11-14 04:32:47,304 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 98 treesize of output 82 [2024-11-14 04:32:47,649 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 [2024-11-14 04:32:48,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:48,258 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 52 treesize of output 33 [2024-11-14 04:32:49,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:49,172 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 61 treesize of output 45 [2024-11-14 04:32:50,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:50,324 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 70 treesize of output 57 [2024-11-14 04:32:51,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:51,570 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 81 treesize of output 71 [2024-11-14 04:32:52,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:52,068 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 81 treesize of output 71 [2024-11-14 04:32:52,708 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:52,709 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 81 treesize of output 71 [2024-11-14 04:32:54,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:54,010 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 105 treesize of output 101 [2024-11-14 04:32:54,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:54,277 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 111 treesize of output 110 [2024-11-14 04:32:54,558 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:54,558 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 112 treesize of output 120 [2024-11-14 04:32:56,295 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:56,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 167 treesize of output 137 [2024-11-14 04:32:56,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:32:56,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 199 treesize of output 73 [2024-11-14 04:32:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 318 proven. 138 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-14 04:32:57,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:32:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:32:58,081 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:32:58,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475089300] [2024-11-14 04:32:58,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1475089300] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:32:58,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:32:58,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 36 [2024-11-14 04:32:58,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930376035] [2024-11-14 04:32:58,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:58,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:32:58,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:32:58,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:32:58,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1069, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 04:32:58,082 INFO L87 Difference]: Start difference. First operand 694 states and 907 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:59,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:59,349 INFO L93 Difference]: Finished difference Result 1369 states and 1790 transitions. [2024-11-14 04:32:59,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:32:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-14 04:32:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:59,362 INFO L225 Difference]: With dead ends: 1369 [2024-11-14 04:32:59,362 INFO L226 Difference]: Without dead ends: 678 [2024-11-14 04:32:59,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 224 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=196, Invalid=1136, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:32:59,364 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 92 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:59,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 329 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:32:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-11-14 04:32:59,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 674. [2024-11-14 04:32:59,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 596 states have (on average 1.2567114093959733) internal successors, (749), 607 states have internal predecessors, (749), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:32:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 879 transitions. [2024-11-14 04:32:59,413 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 879 transitions. Word has length 133 [2024-11-14 04:32:59,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:59,414 INFO L471 AbstractCegarLoop]: Abstraction has 674 states and 879 transitions. [2024-11-14 04:32:59,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:32:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 879 transitions. [2024-11-14 04:32:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-14 04:32:59,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:59,417 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:59,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-14 04:32:59,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:32:59,617 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:59,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 635482624, now seen corresponding path program 1 times [2024-11-14 04:32:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:32:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531207635] [2024-11-14 04:32:59,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:59,621 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 [2024-11-14 04:32:59,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:32:59,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:32:59,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:00,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 04:33:00,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:00,031 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 69 treesize of output 68 [2024-11-14 04:33:00,145 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 90 treesize of output 82 [2024-11-14 04:33:00,320 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 [2024-11-14 04:33:00,517 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 [2024-11-14 04:33:00,609 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 [2024-11-14 04:33:00,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:00,825 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 [2024-11-14 04:33:01,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:01,285 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 55 treesize of output 45 [2024-11-14 04:33:01,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:01,408 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 72 treesize of output 59 [2024-11-14 04:33:01,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:01,673 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 83 treesize of output 62 [2024-11-14 04:33:01,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:01,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 78 treesize of output 30 [2024-11-14 04:33:01,983 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 04:33:01,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:02,319 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:02,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531207635] [2024-11-14 04:33:02,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531207635] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:02,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:02,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-14 04:33:02,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353217509] [2024-11-14 04:33:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:02,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:33:02,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:02,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:33:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:33:02,321 INFO L87 Difference]: Start difference. First operand 674 states and 879 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:03,265 INFO L93 Difference]: Finished difference Result 1586 states and 2070 transitions. [2024-11-14 04:33:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:33:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 133 [2024-11-14 04:33:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:03,270 INFO L225 Difference]: With dead ends: 1586 [2024-11-14 04:33:03,270 INFO L226 Difference]: Without dead ends: 915 [2024-11-14 04:33:03,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:33:03,272 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 50 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:03,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 436 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:33:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-11-14 04:33:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 761. [2024-11-14 04:33:03,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 683 states have (on average 1.2723279648609078) internal successors, (869), 694 states have internal predecessors, (869), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 999 transitions. [2024-11-14 04:33:03,309 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 999 transitions. Word has length 133 [2024-11-14 04:33:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:03,309 INFO L471 AbstractCegarLoop]: Abstraction has 761 states and 999 transitions. [2024-11-14 04:33:03,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 999 transitions. [2024-11-14 04:33:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:03,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:03,312 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:03,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:03,512 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:03,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1392567267, now seen corresponding path program 1 times [2024-11-14 04:33:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901971856] [2024-11-14 04:33:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:03,513 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 [2024-11-14 04:33:03,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:03,515 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:03,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:03,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:03,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:33:03,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:03,846 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 [2024-11-14 04:33:03,918 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 29 treesize of output 13 [2024-11-14 04:33:03,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-14 04:33:04,087 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 39 treesize of output 26 [2024-11-14 04:33:04,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:04,400 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 50 treesize of output 40 [2024-11-14 04:33:04,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:04,557 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 50 treesize of output 40 [2024-11-14 04:33:04,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:04,843 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 63 treesize of output 65 [2024-11-14 04:33:04,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:04,968 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 80 treesize of output 79 [2024-11-14 04:33:05,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:05,140 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 92 treesize of output 94 [2024-11-14 04:33:06,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:06,011 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 109 treesize of output 97 [2024-11-14 04:33:06,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:06,383 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 114 treesize of output 42 [2024-11-14 04:33:06,473 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 381 proven. 48 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-14 04:33:06,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:07,005 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:07,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901971856] [2024-11-14 04:33:07,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901971856] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:07,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:07,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-14 04:33:07,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504316939] [2024-11-14 04:33:07,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:07,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:33:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:07,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:33:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-11-14 04:33:07,007 INFO L87 Difference]: Start difference. First operand 761 states and 999 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:08,271 INFO L93 Difference]: Finished difference Result 1625 states and 2127 transitions. [2024-11-14 04:33:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:33:08,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-14 04:33:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:08,275 INFO L225 Difference]: With dead ends: 1625 [2024-11-14 04:33:08,276 INFO L226 Difference]: Without dead ends: 867 [2024-11-14 04:33:08,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=132, Invalid=570, Unknown=0, NotChecked=0, Total=702 [2024-11-14 04:33:08,278 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 108 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:08,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 497 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:33:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-11-14 04:33:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 764. [2024-11-14 04:33:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 686 states have (on average 1.271137026239067) internal successors, (872), 697 states have internal predecessors, (872), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1002 transitions. [2024-11-14 04:33:08,314 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1002 transitions. Word has length 134 [2024-11-14 04:33:08,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:08,314 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1002 transitions. [2024-11-14 04:33:08,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:08,315 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1002 transitions. [2024-11-14 04:33:08,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:08,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:08,317 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:08,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:08,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:08,517 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:08,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:08,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1035730337, now seen corresponding path program 1 times [2024-11-14 04:33:08,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:08,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349493655] [2024-11-14 04:33:08,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:08,518 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 [2024-11-14 04:33:08,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:08,520 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:08,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-14 04:33:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:08,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:33:08,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:08,877 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 [2024-11-14 04:33:08,904 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 28 treesize of output 16 [2024-11-14 04:33:08,914 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 23 treesize of output 11 [2024-11-14 04:33:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:08,944 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:08,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:08,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349493655] [2024-11-14 04:33:08,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349493655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:08,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:08,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:33:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780012248] [2024-11-14 04:33:08,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:08,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:33:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:33:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:33:08,946 INFO L87 Difference]: Start difference. First operand 764 states and 1002 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:10,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:10,271 INFO L93 Difference]: Finished difference Result 1709 states and 2226 transitions. [2024-11-14 04:33:10,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:33:10,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-14 04:33:10,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:10,275 INFO L225 Difference]: With dead ends: 1709 [2024-11-14 04:33:10,275 INFO L226 Difference]: Without dead ends: 948 [2024-11-14 04:33:10,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:33:10,277 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 73 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:10,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 367 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 04:33:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-14 04:33:10,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 752. [2024-11-14 04:33:10,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 674 states have (on average 1.2492581602373887) internal successors, (842), 685 states have internal predecessors, (842), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 972 transitions. [2024-11-14 04:33:10,324 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 972 transitions. Word has length 134 [2024-11-14 04:33:10,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:10,325 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 972 transitions. [2024-11-14 04:33:10,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:10,325 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 972 transitions. [2024-11-14 04:33:10,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:10,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:10,327 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:10,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-14 04:33:10,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:10,528 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:10,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:10,528 INFO L85 PathProgramCache]: Analyzing trace with hash -911730005, now seen corresponding path program 1 times [2024-11-14 04:33:10,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:10,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014457452] [2024-11-14 04:33:10,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:10,529 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 [2024-11-14 04:33:10,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:10,531 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:10,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:10,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:33:10,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:10,857 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 [2024-11-14 04:33:10,909 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 29 treesize of output 13 [2024-11-14 04:33:10,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-14 04:33:11,079 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 34 treesize of output 36 [2024-11-14 04:33:11,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:11,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 54 [2024-11-14 04:33:11,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:11,835 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 59 treesize of output 52 [2024-11-14 04:33:12,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:12,258 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 72 treesize of output 77 [2024-11-14 04:33:12,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:12,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 91 [2024-11-14 04:33:12,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:12,572 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 105 [2024-11-14 04:33:13,816 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:13,816 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 120 treesize of output 117 [2024-11-14 04:33:14,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:14,188 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 125 treesize of output 53 [2024-11-14 04:33:14,278 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 403 proven. 48 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 04:33:14,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:14,770 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:14,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014457452] [2024-11-14 04:33:14,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014457452] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:14,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:14,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 26 [2024-11-14 04:33:14,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455242316] [2024-11-14 04:33:14,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:14,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:33:14,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:14,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:33:14,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=515, Unknown=0, NotChecked=0, Total=650 [2024-11-14 04:33:14,772 INFO L87 Difference]: Start difference. First operand 752 states and 972 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:15,826 INFO L93 Difference]: Finished difference Result 1601 states and 2067 transitions. [2024-11-14 04:33:15,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:33:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-14 04:33:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:15,831 INFO L225 Difference]: With dead ends: 1601 [2024-11-14 04:33:15,831 INFO L226 Difference]: Without dead ends: 852 [2024-11-14 04:33:15,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:33:15,833 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 149 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:15,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 489 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:33:15,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-14 04:33:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 755. [2024-11-14 04:33:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 677 states have (on average 1.2481536189069424) internal successors, (845), 688 states have internal predecessors, (845), 65 states have call successors, (65), 12 states have call predecessors, (65), 12 states have return successors, (65), 54 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-14 04:33:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 975 transitions. [2024-11-14 04:33:15,868 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 975 transitions. Word has length 134 [2024-11-14 04:33:15,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:15,869 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 975 transitions. [2024-11-14 04:33:15,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:15,869 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 975 transitions. [2024-11-14 04:33:15,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:15,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:15,871 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:15,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-14 04:33:16,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:16,072 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:16,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2084751579, now seen corresponding path program 1 times [2024-11-14 04:33:16,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:16,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482020999] [2024-11-14 04:33:16,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:16,073 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 [2024-11-14 04:33:16,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:16,074 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:16,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-14 04:33:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:16,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-14 04:33:16,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:16,383 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 [2024-11-14 04:33:16,413 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 [2024-11-14 04:33:16,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-14 04:33:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:16,448 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:16,449 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:16,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482020999] [2024-11-14 04:33:16,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482020999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:16,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:16,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:33:16,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385304579] [2024-11-14 04:33:16,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:16,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:33:16,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:16,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:33:16,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:33:16,450 INFO L87 Difference]: Start difference. First operand 755 states and 975 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:17,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:17,254 INFO L93 Difference]: Finished difference Result 1426 states and 1837 transitions. [2024-11-14 04:33:17,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:33:17,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-14 04:33:17,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:17,258 INFO L225 Difference]: With dead ends: 1426 [2024-11-14 04:33:17,258 INFO L226 Difference]: Without dead ends: 674 [2024-11-14 04:33:17,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:33:17,260 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 73 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:17,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 468 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:33:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2024-11-14 04:33:17,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 671. [2024-11-14 04:33:17,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 595 states have (on average 1.2285714285714286) internal successors, (731), 604 states have internal predecessors, (731), 63 states have call successors, (63), 12 states have call predecessors, (63), 12 states have return successors, (63), 54 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:33:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 857 transitions. [2024-11-14 04:33:17,291 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 857 transitions. Word has length 134 [2024-11-14 04:33:17,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:17,291 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 857 transitions. [2024-11-14 04:33:17,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:17,292 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 857 transitions. [2024-11-14 04:33:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:17,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:17,294 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:17,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-14 04:33:17,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:17,494 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:17,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -218081887, now seen corresponding path program 1 times [2024-11-14 04:33:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055603971] [2024-11-14 04:33:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:17,495 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 [2024-11-14 04:33:17,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:17,497 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:17,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:17,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-14 04:33:17,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:17,831 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 [2024-11-14 04:33:17,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-14 04:33:17,927 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 29 treesize of output 13 [2024-11-14 04:33:17,983 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 29 treesize of output 13 [2024-11-14 04:33:18,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 23 [2024-11-14 04:33:18,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:18,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2024-11-14 04:33:18,343 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:18,343 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 52 treesize of output 60 [2024-11-14 04:33:18,433 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:18,434 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 69 treesize of output 83 [2024-11-14 04:33:18,549 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:18,549 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 86 treesize of output 97 [2024-11-14 04:33:19,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:19,249 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 126 treesize of output 111 [2024-11-14 04:33:19,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:19,570 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 132 treesize of output 48 [2024-11-14 04:33:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 366 proven. 33 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-14 04:33:19,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:20,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:20,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055603971] [2024-11-14 04:33:20,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055603971] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2024-11-14 04:33:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264710312] [2024-11-14 04:33:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:20,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 04:33:20,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:20,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 04:33:20,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-14 04:33:20,121 INFO L87 Difference]: Start difference. First operand 671 states and 857 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:21,644 INFO L93 Difference]: Finished difference Result 1323 states and 1688 transitions. [2024-11-14 04:33:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:33:21,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 134 [2024-11-14 04:33:21,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:21,647 INFO L225 Difference]: With dead ends: 1323 [2024-11-14 04:33:21,647 INFO L226 Difference]: Without dead ends: 655 [2024-11-14 04:33:21,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:33:21,649 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 50 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:21,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 606 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-14 04:33:21,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-14 04:33:21,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 652. [2024-11-14 04:33:21,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 576 states have (on average 1.2204861111111112) internal successors, (703), 585 states have internal predecessors, (703), 63 states have call successors, (63), 12 states have call predecessors, (63), 12 states have return successors, (63), 54 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 04:33:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 829 transitions. [2024-11-14 04:33:21,680 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 829 transitions. Word has length 134 [2024-11-14 04:33:21,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:21,681 INFO L471 AbstractCegarLoop]: Abstraction has 652 states and 829 transitions. [2024-11-14 04:33:21,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:21,681 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 829 transitions. [2024-11-14 04:33:21,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 04:33:21,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:21,683 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:21,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 04:33:21,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:21,884 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:21,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1808098131, now seen corresponding path program 1 times [2024-11-14 04:33:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:21,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015287322] [2024-11-14 04:33:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:21,885 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 [2024-11-14 04:33:21,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:21,886 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:21,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:22,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 04:33:22,241 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:22,247 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 8 treesize of output 1 [2024-11-14 04:33:22,324 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 [2024-11-14 04:33:22,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-14 04:33:22,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:22,446 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 44 treesize of output 40 [2024-11-14 04:33:22,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:22,498 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 61 treesize of output 63 [2024-11-14 04:33:22,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:22,575 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 78 treesize of output 77 [2024-11-14 04:33:22,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:22,738 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 84 treesize of output 30 [2024-11-14 04:33:22,913 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-14 04:33:22,913 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:33:23,281 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:23,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015287322] [2024-11-14 04:33:23,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015287322] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:33:23,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [170929566] [2024-11-14 04:33:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:23,281 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:33:23,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:33:23,284 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:33:23,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-14 04:33:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:23,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:33:23,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:24,151 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 12 treesize of output 8 [2024-11-14 04:33:24,548 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 33 treesize of output 17 [2024-11-14 04:33:24,751 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 33 treesize of output 17 [2024-11-14 04:33:24,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:24,997 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 44 treesize of output 38 [2024-11-14 04:33:25,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:25,116 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 45 treesize of output 53 [2024-11-14 04:33:25,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:25,266 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 58 treesize of output 65 [2024-11-14 04:33:25,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:25,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 62 treesize of output 30 [2024-11-14 04:33:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 286 proven. 18 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-14 04:33:25,518 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:33:25,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [170929566] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:33:25,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217640305] [2024-11-14 04:33:25,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:25,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:25,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:25,758 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:25,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-14 04:33:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:25,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 04:33:25,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:26,015 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 [2024-11-14 04:33:26,055 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 [2024-11-14 04:33:26,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:26,127 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 44 treesize of output 40 [2024-11-14 04:33:26,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:26,154 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 61 treesize of output 63 [2024-11-14 04:33:26,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:26,179 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 78 treesize of output 77 [2024-11-14 04:33:26,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:26,240 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 84 treesize of output 30 [2024-11-14 04:33:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 276 proven. 18 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-14 04:33:26,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 30 proven. 18 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 04:33:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217640305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:33:26,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:33:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 11, 7, 10, 7] total 23 [2024-11-14 04:33:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262727251] [2024-11-14 04:33:26,751 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:33:26,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:33:26,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:26,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:33:26,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:33:26,753 INFO L87 Difference]: Start difference. First operand 652 states and 829 transitions. Second operand has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-14 04:33:31,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:31,686 INFO L93 Difference]: Finished difference Result 1253 states and 1573 transitions. [2024-11-14 04:33:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 04:33:31,687 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) Word has length 134 [2024-11-14 04:33:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:31,689 INFO L225 Difference]: With dead ends: 1253 [2024-11-14 04:33:31,690 INFO L226 Difference]: Without dead ends: 604 [2024-11-14 04:33:31,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 811 GetRequests, 771 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=331, Invalid=929, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 04:33:31,691 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 510 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:31,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 414 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-14 04:33:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-14 04:33:31,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 431. [2024-11-14 04:33:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 375 states have (on average 1.2) internal successors, (450), 380 states have internal predecessors, (450), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:33:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 540 transitions. [2024-11-14 04:33:31,726 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 540 transitions. Word has length 134 [2024-11-14 04:33:31,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:31,727 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 540 transitions. [2024-11-14 04:33:31,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.35) internal successors, (107), 22 states have internal predecessors, (107), 7 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (41), 4 states have call predecessors, (41), 7 states have call successors, (41) [2024-11-14 04:33:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 540 transitions. [2024-11-14 04:33:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:31,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:31,729 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:31,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-14 04:33:31,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2024-11-14 04:33:32,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 04:33:32,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:32,330 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:32,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:32,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1864711438, now seen corresponding path program 1 times [2024-11-14 04:33:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:32,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475216732] [2024-11-14 04:33:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:32,330 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 [2024-11-14 04:33:32,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:32,332 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:32,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:32,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 04:33:32,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:32,733 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 [2024-11-14 04:33:32,738 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 [2024-11-14 04:33:32,824 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 [2024-11-14 04:33:32,896 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 [2024-11-14 04:33:33,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:33,016 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 [2024-11-14 04:33:33,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:33,067 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 62 [2024-11-14 04:33:33,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:33,163 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 72 treesize of output 77 [2024-11-14 04:33:33,300 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:33,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 83 treesize of output 80 [2024-11-14 04:33:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 04:33:33,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:33,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:33,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475216732] [2024-11-14 04:33:33,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475216732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:33,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:33,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:33:33,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939743990] [2024-11-14 04:33:33,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:33,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:33:33,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:33,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:33:33,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:33:33,823 INFO L87 Difference]: Start difference. First operand 431 states and 540 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:36,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:36,358 INFO L93 Difference]: Finished difference Result 602 states and 746 transitions. [2024-11-14 04:33:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 04:33:36,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-14 04:33:36,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:36,362 INFO L225 Difference]: With dead ends: 602 [2024-11-14 04:33:36,362 INFO L226 Difference]: Without dead ends: 600 [2024-11-14 04:33:36,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:33:36,363 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 354 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:36,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 354 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 04:33:36,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-14 04:33:36,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 440. [2024-11-14 04:33:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 384 states have (on average 1.1953125) internal successors, (459), 389 states have internal predecessors, (459), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:33:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 549 transitions. [2024-11-14 04:33:36,412 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 549 transitions. Word has length 135 [2024-11-14 04:33:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:36,412 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 549 transitions. [2024-11-14 04:33:36,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 549 transitions. [2024-11-14 04:33:36,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:36,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:36,414 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:36,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:36,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:36,615 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:36,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:36,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1862864396, now seen corresponding path program 1 times [2024-11-14 04:33:36,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:36,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270486349] [2024-11-14 04:33:36,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:36,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:36,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:36,617 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:36,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:36,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 04:33:36,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:37,002 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 [2024-11-14 04:33:37,006 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 [2024-11-14 04:33:37,010 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 14 treesize of output 10 [2024-11-14 04:33:37,076 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 [2024-11-14 04:33:37,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:37,195 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 43 treesize of output 48 [2024-11-14 04:33:37,233 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:37,234 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 60 treesize of output 71 [2024-11-14 04:33:37,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:37,294 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 77 treesize of output 85 [2024-11-14 04:33:37,430 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:37,430 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 88 treesize of output 88 [2024-11-14 04:33:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-14 04:33:37,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:37,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:37,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270486349] [2024-11-14 04:33:37,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270486349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:37,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:37,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:33:37,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804879465] [2024-11-14 04:33:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:37,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:33:37,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:37,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:33:37,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:33:37,851 INFO L87 Difference]: Start difference. First operand 440 states and 549 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:41,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:41,120 INFO L93 Difference]: Finished difference Result 1046 states and 1297 transitions. [2024-11-14 04:33:41,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:33:41,121 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-14 04:33:41,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:41,124 INFO L225 Difference]: With dead ends: 1046 [2024-11-14 04:33:41,124 INFO L226 Difference]: Without dead ends: 609 [2024-11-14 04:33:41,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:33:41,126 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 213 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:41,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 422 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 04:33:41,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-14 04:33:41,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 528. [2024-11-14 04:33:41,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 472 states have (on average 1.201271186440678) internal successors, (567), 477 states have internal predecessors, (567), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:33:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 657 transitions. [2024-11-14 04:33:41,176 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 657 transitions. Word has length 135 [2024-11-14 04:33:41,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:41,176 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 657 transitions. [2024-11-14 04:33:41,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:41,177 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 657 transitions. [2024-11-14 04:33:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:41,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:41,178 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:41,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:41,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:41,379 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:41,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:41,380 INFO L85 PathProgramCache]: Analyzing trace with hash 357176727, now seen corresponding path program 1 times [2024-11-14 04:33:41,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:41,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437924049] [2024-11-14 04:33:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:41,380 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 [2024-11-14 04:33:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:41,382 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:41,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-14 04:33:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:41,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 04:33:41,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:41,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 68 [2024-11-14 04:33:41,848 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 90 treesize of output 82 [2024-11-14 04:33:41,933 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 [2024-11-14 04:33:42,196 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 [2024-11-14 04:33:42,292 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 [2024-11-14 04:33:42,385 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 [2024-11-14 04:33:42,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:42,805 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 42 treesize of output 29 [2024-11-14 04:33:42,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:42,969 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 37 treesize of output 39 [2024-11-14 04:33:43,308 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:43,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-14 04:33:43,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:43,981 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 95 treesize of output 79 [2024-11-14 04:33:44,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:44,192 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 101 treesize of output 88 [2024-11-14 04:33:44,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:44,383 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 118 treesize of output 102 [2024-11-14 04:33:44,706 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:44,707 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 129 treesize of output 105 [2024-11-14 04:33:45,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:45,007 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 134 treesize of output 50 [2024-11-14 04:33:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 383 proven. 57 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-14 04:33:45,368 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:45,953 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:45,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437924049] [2024-11-14 04:33:45,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [437924049] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:45,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:45,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-14 04:33:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533997969] [2024-11-14 04:33:45,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:45,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:33:45,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:33:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:33:45,954 INFO L87 Difference]: Start difference. First operand 528 states and 657 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:47,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:47,020 INFO L93 Difference]: Finished difference Result 1021 states and 1267 transitions. [2024-11-14 04:33:47,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:33:47,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-14 04:33:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:47,024 INFO L225 Difference]: With dead ends: 1021 [2024-11-14 04:33:47,024 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 04:33:47,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:33:47,027 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 163 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:47,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 317 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 04:33:47,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 04:33:47,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 482. [2024-11-14 04:33:47,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 426 states have (on average 1.1807511737089202) internal successors, (503), 431 states have internal predecessors, (503), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (45), 40 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-14 04:33:47,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 593 transitions. [2024-11-14 04:33:47,081 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 593 transitions. Word has length 135 [2024-11-14 04:33:47,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:47,081 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 593 transitions. [2024-11-14 04:33:47,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:47,081 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 593 transitions. [2024-11-14 04:33:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:47,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:47,083 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:47,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-14 04:33:47,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:47,284 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:47,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:47,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1905489458, now seen corresponding path program 1 times [2024-11-14 04:33:47,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:47,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832199012] [2024-11-14 04:33:47,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:47,286 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 [2024-11-14 04:33:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:47,288 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:47,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:47,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 04:33:47,695 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:47,701 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 [2024-11-14 04:33:47,705 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 [2024-11-14 04:33:47,787 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 [2024-11-14 04:33:47,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:47,944 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 40 treesize of output 27 [2024-11-14 04:33:48,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:48,208 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 42 treesize of output 47 [2024-11-14 04:33:48,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:48,273 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 59 treesize of output 61 [2024-11-14 04:33:48,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:48,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 64 [2024-11-14 04:33:48,819 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-14 04:33:48,819 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:48,819 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:48,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832199012] [2024-11-14 04:33:48,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832199012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:48,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:48,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:33:48,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853194591] [2024-11-14 04:33:48,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:48,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:33:48,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:48,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:33:48,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:33:48,821 INFO L87 Difference]: Start difference. First operand 482 states and 593 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-14 04:33:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:51,092 INFO L93 Difference]: Finished difference Result 843 states and 1029 transitions. [2024-11-14 04:33:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 04:33:51,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2024-11-14 04:33:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:51,095 INFO L225 Difference]: With dead ends: 843 [2024-11-14 04:33:51,095 INFO L226 Difference]: Without dead ends: 841 [2024-11-14 04:33:51,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:33:51,096 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 182 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:51,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 383 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 04:33:51,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-14 04:33:51,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 528. [2024-11-14 04:33:51,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 459 states have (on average 1.167755991285403) internal successors, (536), 465 states have internal predecessors, (536), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:33:51,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 642 transitions. [2024-11-14 04:33:51,175 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 642 transitions. Word has length 135 [2024-11-14 04:33:51,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:51,175 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 642 transitions. [2024-11-14 04:33:51,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-14 04:33:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 642 transitions. [2024-11-14 04:33:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:51,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:51,177 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:51,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:51,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:51,381 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:51,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1907336500, now seen corresponding path program 1 times [2024-11-14 04:33:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:51,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384756191] [2024-11-14 04:33:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:51,382 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 [2024-11-14 04:33:51,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:51,384 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:51,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:51,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:33:51,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:51,795 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 [2024-11-14 04:33:51,798 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 [2024-11-14 04:33:51,859 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 [2024-11-14 04:33:51,911 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 [2024-11-14 04:33:52,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:52,017 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 32 treesize of output 34 [2024-11-14 04:33:52,056 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:52,056 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 49 treesize of output 48 [2024-11-14 04:33:52,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:52,135 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 51 [2024-11-14 04:33:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 04:33:52,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:33:52,381 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:52,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384756191] [2024-11-14 04:33:52,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384756191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:52,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:33:52,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 04:33:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100856462] [2024-11-14 04:33:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:52,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:33:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:52,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:33:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:33:52,382 INFO L87 Difference]: Start difference. First operand 528 states and 642 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:54,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:54,312 INFO L93 Difference]: Finished difference Result 1350 states and 1642 transitions. [2024-11-14 04:33:54,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:33:54,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2024-11-14 04:33:54,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:54,316 INFO L225 Difference]: With dead ends: 1350 [2024-11-14 04:33:54,316 INFO L226 Difference]: Without dead ends: 850 [2024-11-14 04:33:54,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:33:54,318 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 179 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:54,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 382 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 04:33:54,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-14 04:33:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 662. [2024-11-14 04:33:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 593 states have (on average 1.1770657672849916) internal successors, (698), 599 states have internal predecessors, (698), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:33:54,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 804 transitions. [2024-11-14 04:33:54,393 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 804 transitions. Word has length 135 [2024-11-14 04:33:54,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:54,393 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 804 transitions. [2024-11-14 04:33:54,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-14 04:33:54,393 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 804 transitions. [2024-11-14 04:33:54,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:33:54,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:54,395 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:54,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:54,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:33:54,595 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:54,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:54,596 INFO L85 PathProgramCache]: Analyzing trace with hash 419216341, now seen corresponding path program 1 times [2024-11-14 04:33:54,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:33:54,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328512091] [2024-11-14 04:33:54,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:54,596 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 [2024-11-14 04:33:54,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:33:54,598 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:33:54,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:33:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:54,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:33:54,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:54,949 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 [2024-11-14 04:33:55,160 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 41 treesize of output 19 [2024-11-14 04:33:55,285 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 41 treesize of output 19 [2024-11-14 04:33:55,384 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 [2024-11-14 04:33:55,849 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:55,849 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 46 treesize of output 42 [2024-11-14 04:33:56,229 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:56,230 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 [2024-11-14 04:33:56,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:56,758 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 [2024-11-14 04:33:57,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:57,623 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 81 treesize of output 71 [2024-11-14 04:33:57,827 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:57,827 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 98 treesize of output 85 [2024-11-14 04:33:58,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:58,146 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 104 treesize of output 89 [2024-11-14 04:33:58,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:33:58,648 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 43 [2024-11-14 04:33:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 413 proven. 57 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-14 04:33:58,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:33:59,060 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:33:59,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328512091] [2024-11-14 04:33:59,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328512091] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:59,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:33:59,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-14 04:33:59,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635283162] [2024-11-14 04:33:59,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:59,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:33:59,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:33:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:33:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2024-11-14 04:33:59,062 INFO L87 Difference]: Start difference. First operand 662 states and 804 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:33:59,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:59,913 INFO L93 Difference]: Finished difference Result 1407 states and 1702 transitions. [2024-11-14 04:33:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:33:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-14 04:33:59,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:59,918 INFO L225 Difference]: With dead ends: 1407 [2024-11-14 04:33:59,918 INFO L226 Difference]: Without dead ends: 773 [2024-11-14 04:33:59,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:33:59,920 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 102 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:59,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 255 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 04:33:59,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-14 04:33:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 662. [2024-11-14 04:33:59,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 593 states have (on average 1.1669477234401349) internal successors, (692), 599 states have internal predecessors, (692), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:33:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 798 transitions. [2024-11-14 04:33:59,999 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 798 transitions. Word has length 135 [2024-11-14 04:33:59,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:00,000 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 798 transitions. [2024-11-14 04:34:00,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:34:00,000 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 798 transitions. [2024-11-14 04:34:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:34:00,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:00,002 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:00,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:34:00,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:34:00,203 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:00,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:00,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1177208483, now seen corresponding path program 1 times [2024-11-14 04:34:00,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:00,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1789040765] [2024-11-14 04:34:00,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:00,204 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 [2024-11-14 04:34:00,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:00,206 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:34:00,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:34:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:00,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 04:34:00,665 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:00,673 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 69 treesize of output 68 [2024-11-14 04:34:00,784 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 90 treesize of output 82 [2024-11-14 04:34:00,848 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 [2024-11-14 04:34:01,192 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 41 treesize of output 19 [2024-11-14 04:34:01,385 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 41 treesize of output 19 [2024-11-14 04:34:01,586 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 [2024-11-14 04:34:02,240 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:02,240 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 62 treesize of output 37 [2024-11-14 04:34:02,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:02,602 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 62 treesize of output 37 [2024-11-14 04:34:02,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:02,981 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 62 treesize of output 37 [2024-11-14 04:34:03,730 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:03,731 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 71 treesize of output 40 [2024-11-14 04:34:03,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:03,852 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 73 treesize of output 51 [2024-11-14 04:34:04,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:04,022 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 69 treesize of output 62 [2024-11-14 04:34:04,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:04,290 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 75 treesize of output 66 [2024-11-14 04:34:04,727 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:04,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 89 treesize of output 41 [2024-11-14 04:34:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 373 proven. 57 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 04:34:04,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:34:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:34:05,280 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:34:05,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1789040765] [2024-11-14 04:34:05,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1789040765] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:34:05,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:34:05,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [18] total 23 [2024-11-14 04:34:05,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703870256] [2024-11-14 04:34:05,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:05,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:34:05,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:34:05,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:34:05,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-14 04:34:05,283 INFO L87 Difference]: Start difference. First operand 662 states and 798 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:34:06,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:06,576 INFO L93 Difference]: Finished difference Result 1328 states and 1605 transitions. [2024-11-14 04:34:06,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:34:06,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 135 [2024-11-14 04:34:06,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:06,580 INFO L225 Difference]: With dead ends: 1328 [2024-11-14 04:34:06,580 INFO L226 Difference]: Without dead ends: 694 [2024-11-14 04:34:06,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 242 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2024-11-14 04:34:06,582 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 74 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:06,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 490 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:34:06,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-14 04:34:06,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 656. [2024-11-14 04:34:06,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 587 states have (on average 1.1584327086882453) internal successors, (680), 593 states have internal predecessors, (680), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:34:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 786 transitions. [2024-11-14 04:34:06,665 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 786 transitions. Word has length 135 [2024-11-14 04:34:06,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:06,666 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 786 transitions. [2024-11-14 04:34:06,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:34:06,666 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 786 transitions. [2024-11-14 04:34:06,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 04:34:06,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:06,668 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:06,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 04:34:06,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:34:06,872 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:06,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:06,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2060390279, now seen corresponding path program 1 times [2024-11-14 04:34:06,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:06,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523431803] [2024-11-14 04:34:06,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:06,873 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 [2024-11-14 04:34:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:06,875 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:34:06,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:34:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:34:07,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 04:34:07,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:34:07,586 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 [2024-11-14 04:34:07,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2024-11-14 04:34:07,768 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:07,769 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 51 treesize of output 50 [2024-11-14 04:34:07,937 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:34:07,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 66 treesize of output 28 [2024-11-14 04:34:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:34:08,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:34:08,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:34:08,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523431803] [2024-11-14 04:34:08,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523431803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:34:08,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:34:08,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 04:34:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547632003] [2024-11-14 04:34:08,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:34:08,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:34:08,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:34:08,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:34:08,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-14 04:34:08,091 INFO L87 Difference]: Start difference. First operand 656 states and 786 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:34:12,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:34:12,142 INFO L93 Difference]: Finished difference Result 1559 states and 1869 transitions. [2024-11-14 04:34:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 04:34:12,143 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-14 04:34:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:34:12,147 INFO L225 Difference]: With dead ends: 1559 [2024-11-14 04:34:12,147 INFO L226 Difference]: Without dead ends: 931 [2024-11-14 04:34:12,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:34:12,148 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 181 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:34:12,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1473 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-14 04:34:12,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-14 04:34:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 647. [2024-11-14 04:34:12,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 578 states have (on average 1.1557093425605536) internal successors, (668), 584 states have internal predecessors, (668), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:34:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 774 transitions. [2024-11-14 04:34:12,224 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 774 transitions. Word has length 136 [2024-11-14 04:34:12,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:34:12,224 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 774 transitions. [2024-11-14 04:34:12,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:34:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 774 transitions. [2024-11-14 04:34:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 04:34:12,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:34:12,226 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:34:12,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-14 04:34:12,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:34:12,427 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:34:12,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:34:12,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1544863631, now seen corresponding path program 1 times [2024-11-14 04:34:12,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:34:12,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991520420] [2024-11-14 04:34:12,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:34:12,428 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 [2024-11-14 04:34:12,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:34:12,430 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:34:12,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:35:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:35:03,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 79 conjuncts are in the unsatisfiable core [2024-11-14 04:35:03,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:35:03,120 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 69 treesize of output 68 [2024-11-14 04:35:03,331 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 98 treesize of output 82 [2024-11-14 04:35:03,388 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 [2024-11-14 04:35:03,744 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 41 treesize of output 19 [2024-11-14 04:35:03,946 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 41 treesize of output 19 [2024-11-14 04:35:04,143 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 36 treesize of output 29 [2024-11-14 04:35:05,254 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 68 treesize of output 52 [2024-11-14 04:35:07,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:35:07,269 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 94 treesize of output 60 [2024-11-14 04:35:07,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:35:07,966 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 94 treesize of output 60 [2024-11-14 04:35:10,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:35:10,773 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 147 treesize of output 101 [2024-11-14 04:35:11,156 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 0 case distinctions, treesize of input 126 treesize of output 101 [2024-11-14 04:35:15,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:35:15,510 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 135 treesize of output 122 [2024-11-14 04:35:20,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:35:20,618 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 141 treesize of output 138 [2024-11-14 04:36:01,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:36:01,787 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 192 treesize of output 90 [2024-11-14 04:36:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 415 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-14 04:36:03,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:38:24,784 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:38:24,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991520420] [2024-11-14 04:38:24,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991520420] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:38:24,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:38:24,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [44] total 54 [2024-11-14 04:38:24,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010986152] [2024-11-14 04:38:24,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:24,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:38:24,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:38:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:38:24,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=2441, Unknown=66, NotChecked=0, Total=2862 [2024-11-14 04:38:24,786 INFO L87 Difference]: Start difference. First operand 647 states and 774 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:38:27,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:30,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:32,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:49,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:38:51,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:39:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:11,584 INFO L93 Difference]: Finished difference Result 1384 states and 1656 transitions. [2024-11-14 04:39:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:39:11,589 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-14 04:39:11,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:11,593 INFO L225 Difference]: With dead ends: 1384 [2024-11-14 04:39:11,593 INFO L226 Difference]: Without dead ends: 765 [2024-11-14 04:39:11,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 215 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1362 ImplicationChecksByTransitivity, 190.3s TimeCoverageRelationStatistics Valid=472, Invalid=3368, Unknown=66, NotChecked=0, Total=3906 [2024-11-14 04:39:11,594 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 148 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 11 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:11,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 809 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 709 Invalid, 5 Unknown, 0 Unchecked, 38.8s Time] [2024-11-14 04:39:11,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-14 04:39:11,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 657. [2024-11-14 04:39:11,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 588 states have (on average 1.153061224489796) internal successors, (678), 594 states have internal predecessors, (678), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:39:11,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 784 transitions. [2024-11-14 04:39:11,658 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 784 transitions. Word has length 136 [2024-11-14 04:39:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:11,658 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 784 transitions. [2024-11-14 04:39:11,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:39:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 784 transitions. [2024-11-14 04:39:11,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 04:39:11,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:11,660 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:11,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 04:39:11,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:39:11,861 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:39:11,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash 958057617, now seen corresponding path program 1 times [2024-11-14 04:39:11,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:39:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280380410] [2024-11-14 04:39:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:11,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:39:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:39:11,863 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:39:11,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:39:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:12,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:39:12,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:12,334 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 69 treesize of output 68 [2024-11-14 04:39:12,464 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 90 treesize of output 82 [2024-11-14 04:39:12,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 04:39:13,031 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 [2024-11-14 04:39:13,188 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 [2024-11-14 04:39:13,539 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:13,539 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 [2024-11-14 04:39:14,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:14,094 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 65 treesize of output 67 [2024-11-14 04:39:14,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:14,297 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 71 treesize of output 76 [2024-11-14 04:39:14,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:14,585 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 88 treesize of output 99 [2024-11-14 04:39:14,975 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:14,975 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 99 treesize of output 102 [2024-11-14 04:39:15,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:39:15,438 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 94 treesize of output 34 [2024-11-14 04:39:15,768 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 326 proven. 21 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 04:39:15,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-14 04:39:16,296 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:39:16,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280380410] [2024-11-14 04:39:16,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [280380410] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:16,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:39:16,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 17 [2024-11-14 04:39:16,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014296881] [2024-11-14 04:39:16,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:39:16,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:39:16,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:39:16,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:39:16,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:39:16,299 INFO L87 Difference]: Start difference. First operand 657 states and 784 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:39:17,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:17,473 INFO L93 Difference]: Finished difference Result 1360 states and 1620 transitions. [2024-11-14 04:39:17,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:39:17,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2024-11-14 04:39:17,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:17,477 INFO L225 Difference]: With dead ends: 1360 [2024-11-14 04:39:17,477 INFO L226 Difference]: Without dead ends: 731 [2024-11-14 04:39:17,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-14 04:39:17,479 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 41 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:17,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 324 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 04:39:17,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-14 04:39:17,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 657. [2024-11-14 04:39:17,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 588 states have (on average 1.1428571428571428) internal successors, (672), 594 states have internal predecessors, (672), 53 states have call successors, (53), 15 states have call predecessors, (53), 15 states have return successors, (53), 47 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-14 04:39:17,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 778 transitions. [2024-11-14 04:39:17,531 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 778 transitions. Word has length 136 [2024-11-14 04:39:17,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:17,531 INFO L471 AbstractCegarLoop]: Abstraction has 657 states and 778 transitions. [2024-11-14 04:39:17,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-14 04:39:17,531 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 778 transitions. [2024-11-14 04:39:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-14 04:39:17,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:17,533 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:39:17,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 [2024-11-14 04:39:17,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:39:17,734 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:39:17,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1413681645, now seen corresponding path program 1 times [2024-11-14 04:39:17,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:39:17,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950074233] [2024-11-14 04:39:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:17,735 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 [2024-11-14 04:39:17,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:39:17,736 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -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) [2024-11-14 04:39:17,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc5e75f7-4e26-44ac-a3b9-08855644ef27/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-14 04:39:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:18,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-14 04:39:18,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:18,786 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 69 treesize of output 68 [2024-11-14 04:39:19,048 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 104 treesize of output 93 [2024-11-14 04:39:19,576 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 95 treesize of output 86 [2024-11-14 04:39:20,261 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 95 treesize of output 88 [2024-11-14 04:39:21,014 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 101 treesize of output 92 [2024-11-14 04:39:21,899 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 102 treesize of output 91 [2024-11-14 04:39:29,196 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 113 treesize of output 100 [2024-11-14 04:41:14,775 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 129 treesize of output 114 [2024-11-14 04:42:03,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 96 [2024-11-14 04:45:26,673 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 137 treesize of output 118