./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.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_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:48:05,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:48:05,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:48:05,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:48:05,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:48:05,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:48:05,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:48:05,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:48:05,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:48:05,396 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:48:05,396 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:48:05,397 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:48:05,397 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:48:05,397 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:48:05,397 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:48:05,397 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:48:05,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:48:05,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:48:05,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:48:05,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:48:05,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:48:05,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:48:05,400 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:48:05,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:48:05,400 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2024-11-14 03:48:05,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:48:05,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:48:05,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:48:05,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:48:05,703 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:48:05,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i Unable to find full path for "g++" [2024-11-14 03:48:07,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:48:07,855 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:48:07,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-14 03:48:07,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/3f13ae953/f11bbe89580c41ccb2ce3a394c79be93/FLAG54957e5e8 [2024-11-14 03:48:08,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/3f13ae953/f11bbe89580c41ccb2ce3a394c79be93 [2024-11-14 03:48:08,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:48:08,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:48:08,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:48:08,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:48:08,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:48:08,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfdf416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08, skipping insertion in model container [2024-11-14 03:48:08,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,200 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:48:08,378 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-14 03:48:08,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:48:08,528 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:48:08,541 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-14 03:48:08,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:48:08,631 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:48:08,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08 WrapperNode [2024-11-14 03:48:08,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:48:08,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:48:08,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:48:08,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:48:08,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,694 INFO L138 Inliner]: procedures = 29, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-11-14 03:48:08,694 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:48:08,695 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:48:08,695 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:48:08,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:48:08,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,730 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,738 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:48:08,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:48:08,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:48:08,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:48:08,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (1/1) ... [2024-11-14 03:48:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:48:08,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:48:08,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:48:08,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:48:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:48:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:48:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:48:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:48:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:48:08,986 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:48:08,988 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:48:09,636 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-14 03:48:09,636 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:48:10,443 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:48:10,444 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:48:10,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:48:10 BoogieIcfgContainer [2024-11-14 03:48:10,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:48:10,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:48:10,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:48:10,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:48:10,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:48:08" (1/3) ... [2024-11-14 03:48:10,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663c3902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:48:10, skipping insertion in model container [2024-11-14 03:48:10,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:08" (2/3) ... [2024-11-14 03:48:10,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663c3902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:48:10, skipping insertion in model container [2024-11-14 03:48:10,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:48:10" (3/3) ... [2024-11-14 03:48:10,460 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2024-11-14 03:48:10,477 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:48:10,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-25.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:48:10,544 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:48:10,560 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;@1f95f9bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:48:10,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:48:10,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:48:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:48:10,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:10,576 INFO L215 NwaCegarLoop]: trace histogram [18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:10,577 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:10,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash 76239249, now seen corresponding path program 1 times [2024-11-14 03:48:10,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:48:10,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400077888] [2024-11-14 03:48:10,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:10,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:48:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:48:13,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:48:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:48:14,844 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:48:14,846 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:48:14,847 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:48:14,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:48:14,854 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:48:14,962 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:48:14,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:48:14 BoogieIcfgContainer [2024-11-14 03:48:14,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:48:14,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:48:14,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:48:14,967 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:48:14,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:48:10" (3/4) ... [2024-11-14 03:48:14,970 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:48:14,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:48:14,974 INFO L158 Benchmark]: Toolchain (without parser) took 6816.29ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 91.7MB in the beginning and 181.1MB in the end (delta: -89.4MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-11-14 03:48:14,975 INFO L158 Benchmark]: CDTParser took 1.01ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:48:14,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 474.13ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 75.2MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:48:14,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.56ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 71.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:48:14,976 INFO L158 Benchmark]: Boogie Preprocessor took 49.46ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:48:14,976 INFO L158 Benchmark]: RCFGBuilder took 1699.52ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 52.6MB in the end (delta: 15.9MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2024-11-14 03:48:14,977 INFO L158 Benchmark]: TraceAbstraction took 4517.52ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 52.1MB in the beginning and 181.1MB in the end (delta: -129.0MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. [2024-11-14 03:48:14,980 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 226.5MB. Free memory was 181.1MB in the beginning and 181.1MB in the end (delta: 19.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:48:14,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01ms. Allocated memory is still 83.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 474.13ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 75.2MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.56ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 71.5MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.46ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 68.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1699.52ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 52.6MB in the end (delta: 15.9MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4517.52ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 52.1MB in the beginning and 181.1MB in the end (delta: -129.0MB). Peak memory consumption was 110.2MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 226.5MB. Free memory was 181.1MB in the beginning and 181.1MB in the end (delta: 19.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of someBinaryFLOATComparisonOperation at line 37. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2][2] = { {1, 1}, {0, 0} }; [L25-L27] float float_Array_0[2][2] = { {63.363, 128.9}, {4.575, 25.5} }; [L28-L30] unsigned long int unsigned_long_int_Array_0[2][2] = { {10, 0}, {1509114200, 256} }; [L31-L33] unsigned short int unsigned_short_int_Array_0[2] = { 500, 10 }; [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] FCALL updateLastVariables() [L109] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[1][0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] EXPR BOOL_unsigned_char_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L72] BOOL_unsigned_char_Array_0[0][1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] >= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR BOOL_unsigned_char_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L75] BOOL_unsigned_char_Array_0[1][1] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[1][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1][1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L78] float_Array_0[0][0] = __VERIFIER_nondet_float() [L79] EXPR float_Array_0[0][0] [L79] EXPR float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F [L79] EXPR (float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F ) [L79] EXPR float_Array_0[0][0] [L79] EXPR float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F [L79] EXPR float_Array_0[0][0] [L79] EXPR float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F [L79] EXPR (float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not((float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((float_Array_0[0][0] >= -922337.2036854765600e+13F && float_Array_0[0][0] <= -1.0e-20F) || (float_Array_0[0][0] <= 9223372.036854765600e+12F && float_Array_0[0][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] float_Array_0[1][0] = __VERIFIER_nondet_float() [L81] EXPR float_Array_0[1][0] [L81] EXPR float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F [L81] EXPR (float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F ) [L81] EXPR float_Array_0[1][0] [L81] EXPR float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F [L81] EXPR float_Array_0[1][0] [L81] EXPR float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F [L81] EXPR (float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not((float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((float_Array_0[1][0] >= -922337.2036854765600e+13F && float_Array_0[1][0] <= -1.0e-20F) || (float_Array_0[1][0] <= 9223372.036854765600e+12F && float_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] unsigned_long_int_Array_0[0][0] = __VERIFIER_nondet_ulong() [L83] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] EXPR unsigned_long_int_Array_0[0][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_long_int_Array_0[0][0] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L85] unsigned_long_int_Array_0[1][0] = __VERIFIER_nondet_ulong() [L86] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L86] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] >= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L87] EXPR unsigned_long_int_Array_0[1][0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L87] CALL assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(unsigned_long_int_Array_0[1][0] <= 2147483647) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L88] unsigned_long_int_Array_0[0][1] = __VERIFIER_nondet_ulong() [L89] EXPR unsigned_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L89] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L90] EXPR unsigned_long_int_Array_0[0][1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L90] CALL assume_abort_if_not(unsigned_long_int_Array_0[0][1] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(unsigned_long_int_Array_0[0][1] <= 1073741823) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L91] unsigned_short_int_Array_0[0] = __VERIFIER_nondet_ushort() [L92] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L92] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(unsigned_short_int_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L93] EXPR unsigned_short_int_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L93] CALL assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(unsigned_short_int_Array_0[0] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L94] unsigned_short_int_Array_0[1] = __VERIFIER_nondet_ushort() [L95] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L95] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(unsigned_short_int_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L96] EXPR unsigned_short_int_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L96] CALL assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(unsigned_short_int_Array_0[1] <= 65535) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L109] RET updateVariables() [L110] CALL step() [L37] EXPR float_Array_0[0][0] [L37] EXPR float_Array_0[1][0] [L37] COND FALSE !(float_Array_0[0][0] != float_Array_0[1][0]) [L44] EXPR BOOL_unsigned_char_Array_0[0][1] [L44] BOOL_unsigned_char_Array_0[0][0] = BOOL_unsigned_char_Array_0[0][1] [L46] EXPR unsigned_short_int_Array_0[1] [L46] unsigned short int stepLocal_0 = unsigned_short_int_Array_0[1]; [L47] BOOL_unsigned_char_Array_0[0][0] [L47] COND TRUE BOOL_unsigned_char_Array_0[0][0] [L48] EXPR unsigned_short_int_Array_0[0] [L48] COND TRUE stepLocal_0 <= unsigned_short_int_Array_0[0] [L49] EXPR unsigned_short_int_Array_0[1] [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR unsigned_long_int_Array_0[0][1] [L49] EXPR ((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])) [L49] EXPR unsigned_short_int_Array_0[0] [L49] EXPR unsigned_long_int_Array_0[0][1] [L49] EXPR ((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])) [L49] EXPR unsigned_long_int_Array_0[1][0] [L49] EXPR unsigned_long_int_Array_0[0][0] [L49] unsigned_long_int_Array_0[1][1] = (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])) [L54] EXPR unsigned_long_int_Array_0[1][1] [L54] unsigned long int stepLocal_1 = unsigned_long_int_Array_0[1][1]; [L55] EXPR unsigned_long_int_Array_0[0][0] [L55] COND FALSE !(unsigned_long_int_Array_0[0][0] >= stepLocal_1) [L58] EXPR float_Array_0[0][0] [L58] EXPR float_Array_0[1][0] [L58] EXPR ((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]) [L58] EXPR float_Array_0[1][0] [L58] EXPR ((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]) [L58] float_Array_0[0][1] = ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))) [L60] EXPR float_Array_0[1][0] [L60] EXPR float_Array_0[0][0] [L60] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) [L60] EXPR float_Array_0[0][0] [L60] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) [L60] EXPR float_Array_0[0][1] [L60] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) [L60] EXPR float_Array_0[0][1] [L60] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) [L60] COND FALSE !(float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) [L63] EXPR unsigned_long_int_Array_0[0][0] [L63] EXPR unsigned_long_int_Array_0[1][0] [L63] COND FALSE !(! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) [L110] RET step() [L111] CALL, EXPR property() [L101] EXPR BOOL_unsigned_char_Array_0[0][0] [L101] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0])) [L101] EXPR unsigned_short_int_Array_0[1] [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR (unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1 [L101] EXPR unsigned_long_int_Array_0[1][1] [L101] EXPR unsigned_short_int_Array_0[1] [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR unsigned_long_int_Array_0[0][1] [L101] EXPR ((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])) [L101] EXPR unsigned_short_int_Array_0[0] [L101] EXPR unsigned_long_int_Array_0[0][1] [L101] EXPR ((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])) [L101] EXPR unsigned_long_int_Array_0[1][0] [L101] EXPR unsigned_long_int_Array_0[0][0] [L101] EXPR (unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1 [L101] EXPR BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0])) [L101] EXPR (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0])))))) [L101] EXPR unsigned_long_int_Array_0[0][0] [L101] EXPR unsigned_long_int_Array_0[1][1] [L101] EXPR (unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))) [L101] EXPR float_Array_0[0][1] [L101] EXPR float_Array_0[0][0] [L101] EXPR float_Array_0[1][0] [L101] EXPR ((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]) [L101] EXPR float_Array_0[0][0] [L101] EXPR ((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]) [L101] EXPR (unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))) [L101] EXPR (BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0])))))) [L101] EXPR ((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1)) [L101] EXPR float_Array_0[1][0] [L101] EXPR float_Array_0[0][0] [L101] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) [L101] EXPR float_Array_0[0][0] [L101] EXPR ((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0]) [L101] EXPR float_Array_0[0][1] [L101] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) [L101] EXPR float_Array_0[0][1] [L101] EXPR ((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1]) [L101] EXPR (float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1) [L101] EXPR float_Array_0[1][1] [L101] EXPR float_Array_0[1][0] [L101] EXPR (float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1) [L101] EXPR ((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1)) [L101] EXPR (((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1))) && ((float_Array_0[0][0] != float_Array_0[1][0]) ? ((BOOL_unsigned_char_Array_0[1][1] || BOOL_unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) [L101-L102] return (((BOOL_unsigned_char_Array_0[0][0] ? ((unsigned_short_int_Array_0[1] <= unsigned_short_int_Array_0[0]) ? (unsigned_long_int_Array_0[1][1] == ((unsigned long int) (((((unsigned_short_int_Array_0[1]) > ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1]))) ? (unsigned_short_int_Array_0[1]) : ((unsigned_short_int_Array_0[0] + unsigned_long_int_Array_0[0][1])))) + (unsigned_long_int_Array_0[1][0] - unsigned_long_int_Array_0[0][0])))) : 1) : (unsigned_long_int_Array_0[1][1] == ((unsigned long int) unsigned_long_int_Array_0[0][0]))) && ((unsigned_long_int_Array_0[0][0] >= unsigned_long_int_Array_0[1][1]) ? (float_Array_0[0][1] == ((float) ((((0.5f) < (float_Array_0[0][0])) ? (0.5f) : (float_Array_0[0][0]))))) : (float_Array_0[0][1] == ((float) ((((float_Array_0[0][0]) < (float_Array_0[1][0])) ? (float_Array_0[0][0]) : (float_Array_0[1][0]))))))) && ((float_Array_0[1][0] >= ((((((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) < (float_Array_0[0][1])) ? (((((128.175f) > (float_Array_0[0][0])) ? (128.175f) : (float_Array_0[0][0])))) : (float_Array_0[0][1])))) ? (float_Array_0[1][1] == ((float) float_Array_0[1][0])) : ((! (unsigned_long_int_Array_0[0][0] <= unsigned_long_int_Array_0[1][0])) ? (float_Array_0[1][1] == ((float) float_Array_0[0][0])) : 1))) && ((float_Array_0[0][0] != float_Array_0[1][0]) ? ((BOOL_unsigned_char_Array_0[1][1] || BOOL_unsigned_char_Array_0[1][0]) ? (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) (BOOL_unsigned_char_Array_0[1][0] || BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) : (BOOL_unsigned_char_Array_0[0][0] == ((unsigned char) BOOL_unsigned_char_Array_0[0][1]))) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, float_Array_0={5:0}, isInitial=1, unsigned_long_int_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 1, TraceHistogramMax: 18, 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=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:48:15,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:48:17,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:48:17,784 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:48:17,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:48:17,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:48:17,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:48:17,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:48:17,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:48:17,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:48:17,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:48:17,857 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:48:17,858 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:48:17,858 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:48:17,858 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:48:17,858 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:48:17,858 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:48:17,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:48:17,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:48:17,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:48:17,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:48:17,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:48:17,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:48:17,862 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:48:17,862 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 -> 153786ff23d1f4ad1fa22216334d8f153d923a58dff5067a8f60a9c72819150b [2024-11-14 03:48:18,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:48:18,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:48:18,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:48:18,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:48:18,193 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:48:18,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i Unable to find full path for "g++" [2024-11-14 03:48:20,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:48:20,469 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:48:20,472 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i [2024-11-14 03:48:20,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/dc52b741b/ea0b107e99624f4f98223f297925ed94/FLAG44113cea1 [2024-11-14 03:48:20,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/data/dc52b741b/ea0b107e99624f4f98223f297925ed94 [2024-11-14 03:48:20,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:48:20,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:48:20,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:48:20,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:48:20,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:48:20,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:48:20" (1/1) ... [2024-11-14 03:48:20,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c407f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:20, skipping insertion in model container [2024-11-14 03:48:20,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:48:20" (1/1) ... [2024-11-14 03:48:20,552 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:48:20,731 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-14 03:48:20,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:48:20,889 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:48:20,903 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_697cd753-1fa0-4a98-9efa-36cfd9dff562/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-25.i[916,929] [2024-11-14 03:48:20,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:48:21,001 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:48:21,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21 WrapperNode [2024-11-14 03:48:21,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:48:21,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:48:21,003 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:48:21,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:48:21,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,110 INFO L138 Inliner]: procedures = 36, calls = 179, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-11-14 03:48:21,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:48:21,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:48:21,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:48:21,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:48:21,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,183 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,202 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,204 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:48:21,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:48:21,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:48:21,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:48:21,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (1/1) ... [2024-11-14 03:48:21,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:48:21,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:48:21,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:48:21,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:48:21,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:48:21,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-14 03:48:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 03:48:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 03:48:21,302 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:48:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:48:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:48:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:48:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 03:48:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-14 03:48:21,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:48:21,493 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:48:21,497 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:48:22,400 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-11-14 03:48:22,400 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:48:22,415 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:48:22,415 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:48:22,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:48:22 BoogieIcfgContainer [2024-11-14 03:48:22,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:48:22,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:48:22,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:48:22,425 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:48:22,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:48:20" (1/3) ... [2024-11-14 03:48:22,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df50800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:48:22, skipping insertion in model container [2024-11-14 03:48:22,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:48:21" (2/3) ... [2024-11-14 03:48:22,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df50800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:48:22, skipping insertion in model container [2024-11-14 03:48:22,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:48:22" (3/3) ... [2024-11-14 03:48:22,429 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-25.i [2024-11-14 03:48:22,445 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:48:22,446 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-25.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:48:22,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:48:22,522 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;@19c99290, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:48:22,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:48:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:48:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-14 03:48:22,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:22,544 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:22,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:22,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:22,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1395042437, now seen corresponding path program 1 times [2024-11-14 03:48:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:22,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1895907241] [2024-11-14 03:48:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:22,568 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 03:48:22,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:22,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:22,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:23,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:48:23,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:23,180 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-14 03:48:23,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:23,181 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1895907241] [2024-11-14 03:48:23,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1895907241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:23,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:23,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:48:23,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214394906] [2024-11-14 03:48:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:23,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:48:23,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:23,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:48:23,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:48:23,220 INFO L87 Difference]: Start difference. First operand has 124 states, 103 states have (on average 1.4271844660194175) internal successors, (147), 104 states have internal predecessors, (147), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:48:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:23,274 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-11-14 03:48:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:48:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 144 [2024-11-14 03:48:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:23,287 INFO L225 Difference]: With dead ends: 241 [2024-11-14 03:48:23,287 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 03:48:23,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 143 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 03:48:23,294 INFO L432 NwaCegarLoop]: 176 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, 176 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 03:48:23,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:48:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 03:48:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-14 03:48:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.4) internal successors, (140), 100 states have internal predecessors, (140), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:48:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-14 03:48:23,405 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-11-14 03:48:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:23,406 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-14 03:48:23,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:48:23,407 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-14 03:48:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-14 03:48:23,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:23,411 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:23,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:23,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:23,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:23,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1954794203, now seen corresponding path program 1 times [2024-11-14 03:48:23,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:23,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839922608] [2024-11-14 03:48:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:23,617 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 03:48:23,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:23,619 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:23,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:24,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:48:24,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:25,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-11-14 03:48:25,403 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 22 treesize of output 15 [2024-11-14 03:48:25,493 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 22 treesize of output 15 [2024-11-14 03:48:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:25,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:25,565 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:25,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839922608] [2024-11-14 03:48:25,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839922608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:25,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:25,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:48:25,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128506522] [2024-11-14 03:48:25,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:25,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:48:25,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:48:25,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:48:25,569 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:26,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:26,873 INFO L93 Difference]: Finished difference Result 295 states and 434 transitions. [2024-11-14 03:48:26,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:48:26,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-14 03:48:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:26,877 INFO L225 Difference]: With dead ends: 295 [2024-11-14 03:48:26,877 INFO L226 Difference]: Without dead ends: 178 [2024-11-14 03:48:26,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:48:26,879 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 281 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:26,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 457 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:48:26,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-14 03:48:26,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 138. [2024-11-14 03:48:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 118 states have internal predecessors, (167), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:48:26,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 203 transitions. [2024-11-14 03:48:26,912 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 203 transitions. Word has length 144 [2024-11-14 03:48:26,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:26,914 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 203 transitions. [2024-11-14 03:48:26,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 203 transitions. [2024-11-14 03:48:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 03:48:26,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:26,917 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:26,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:48:27,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:27,118 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:27,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash -597141495, now seen corresponding path program 1 times [2024-11-14 03:48:27,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:27,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51414694] [2024-11-14 03:48:27,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:27,120 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 03:48:27,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:27,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:27,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:27,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:48:27,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:28,219 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 03:48:28,347 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 18 treesize of output 13 [2024-11-14 03:48:28,412 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 18 treesize of output 13 [2024-11-14 03:48:28,432 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 18 treesize of output 10 [2024-11-14 03:48:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:28,479 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:28,479 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:28,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51414694] [2024-11-14 03:48:28,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51414694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:28,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:28,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:48:28,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801337841] [2024-11-14 03:48:28,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:28,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:48:28,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:28,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:48:28,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:48:28,485 INFO L87 Difference]: Start difference. First operand 138 states and 203 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:33,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:33,174 INFO L93 Difference]: Finished difference Result 359 states and 528 transitions. [2024-11-14 03:48:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:48:33,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-14 03:48:33,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:33,177 INFO L225 Difference]: With dead ends: 359 [2024-11-14 03:48:33,177 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 03:48:33,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:48:33,183 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 212 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:33,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 472 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-14 03:48:33,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 03:48:33,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 221. [2024-11-14 03:48:33,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 192 states have (on average 1.421875) internal successors, (273), 193 states have internal predecessors, (273), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:48:33,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 325 transitions. [2024-11-14 03:48:33,208 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 325 transitions. Word has length 145 [2024-11-14 03:48:33,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:33,209 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 325 transitions. [2024-11-14 03:48:33,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:33,210 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 325 transitions. [2024-11-14 03:48:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-14 03:48:33,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:33,212 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:33,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:48:33,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:33,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2125708685, now seen corresponding path program 1 times [2024-11-14 03:48:33,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262809927] [2024-11-14 03:48:33,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:33,414 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 03:48:33,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:33,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:33,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:33,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:48:33,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:33,823 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:33,823 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:33,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262809927] [2024-11-14 03:48:33,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262809927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:33,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:33,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:48:33,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237200395] [2024-11-14 03:48:33,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:33,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:48:33,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:48:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:48:33,825 INFO L87 Difference]: Start difference. First operand 221 states and 325 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:33,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:33,880 INFO L93 Difference]: Finished difference Result 445 states and 655 transitions. [2024-11-14 03:48:33,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:48:33,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 146 [2024-11-14 03:48:33,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:33,884 INFO L225 Difference]: With dead ends: 445 [2024-11-14 03:48:33,884 INFO L226 Difference]: Without dead ends: 227 [2024-11-14 03:48:33,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 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 03:48:33,886 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:33,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 682 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:48:33,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-14 03:48:33,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2024-11-14 03:48:33,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 196 states have (on average 1.413265306122449) internal successors, (277), 197 states have internal predecessors, (277), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:48:33,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 329 transitions. [2024-11-14 03:48:33,908 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 329 transitions. Word has length 146 [2024-11-14 03:48:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:33,909 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 329 transitions. [2024-11-14 03:48:33,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 329 transitions. [2024-11-14 03:48:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 03:48:33,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:33,912 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:33,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:34,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:34,112 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:34,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash -389566066, now seen corresponding path program 1 times [2024-11-14 03:48:34,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:34,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640486079] [2024-11-14 03:48:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:34,113 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 03:48:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:34,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:34,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:34,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:48:34,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:35,560 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 03:48:35,664 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 18 treesize of output 13 [2024-11-14 03:48:35,725 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 18 treesize of output 13 [2024-11-14 03:48:35,781 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 18 treesize of output 13 [2024-11-14 03:48:35,806 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 18 treesize of output 10 [2024-11-14 03:48:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:35,832 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:35,832 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:35,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640486079] [2024-11-14 03:48:35,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640486079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:35,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:35,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-14 03:48:35,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840215007] [2024-11-14 03:48:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:35,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:48:35,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:48:35,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:48:35,834 INFO L87 Difference]: Start difference. First operand 225 states and 329 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:41,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:41,736 INFO L93 Difference]: Finished difference Result 532 states and 776 transitions. [2024-11-14 03:48:41,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:48:41,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-14 03:48:41,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:41,739 INFO L225 Difference]: With dead ends: 532 [2024-11-14 03:48:41,739 INFO L226 Difference]: Without dead ends: 310 [2024-11-14 03:48:41,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:48:41,741 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 330 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:41,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 394 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-14 03:48:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-14 03:48:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 307. [2024-11-14 03:48:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 263 states have (on average 1.3954372623574145) internal successors, (367), 265 states have internal predecessors, (367), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:48:41,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 447 transitions. [2024-11-14 03:48:41,770 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 447 transitions. Word has length 147 [2024-11-14 03:48:41,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:41,771 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 447 transitions. [2024-11-14 03:48:41,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:41,771 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 447 transitions. [2024-11-14 03:48:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:48:41,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:41,773 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:41,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:41,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:41,974 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:41,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash 815439474, now seen corresponding path program 1 times [2024-11-14 03:48:41,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:41,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515486597] [2024-11-14 03:48:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:41,975 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 03:48:41,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:41,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:41,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:42,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:42,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:48:42,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:43,443 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 03:48:43,487 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 17 treesize of output 12 [2024-11-14 03:48:43,540 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 17 treesize of output 12 [2024-11-14 03:48:43,593 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 17 treesize of output 12 [2024-11-14 03:48:43,622 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:43,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:43,623 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:43,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515486597] [2024-11-14 03:48:43,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515486597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:43,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:43,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:48:43,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731506109] [2024-11-14 03:48:43,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:43,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:48:43,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:43,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:48:43,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:48:43,625 INFO L87 Difference]: Start difference. First operand 307 states and 447 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:45,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:45,178 INFO L93 Difference]: Finished difference Result 611 states and 886 transitions. [2024-11-14 03:48:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:48:45,182 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:48:45,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:45,184 INFO L225 Difference]: With dead ends: 611 [2024-11-14 03:48:45,184 INFO L226 Difference]: Without dead ends: 307 [2024-11-14 03:48:45,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:48:45,188 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 350 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:45,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 399 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:48:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-14 03:48:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 229. [2024-11-14 03:48:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 199 states have (on average 1.3969849246231156) internal successors, (278), 200 states have internal predecessors, (278), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:48:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 330 transitions. [2024-11-14 03:48:45,220 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 330 transitions. Word has length 148 [2024-11-14 03:48:45,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:45,221 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 330 transitions. [2024-11-14 03:48:45,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:45,221 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 330 transitions. [2024-11-14 03:48:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:48:45,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:45,223 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:45,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:45,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:45,424 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:45,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1048802290, now seen corresponding path program 1 times [2024-11-14 03:48:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:45,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810825982] [2024-11-14 03:48:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:45,425 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 03:48:45,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:45,427 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:45,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:45,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:48:45,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:45,850 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 03:48:45,889 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 49 treesize of output 21 [2024-11-14 03:48:45,911 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 57 treesize of output 21 [2024-11-14 03:48:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:46,041 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:46,041 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:46,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810825982] [2024-11-14 03:48:46,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810825982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:46,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:48:46,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 03:48:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383875663] [2024-11-14 03:48:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:46,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:48:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:48:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:48:46,043 INFO L87 Difference]: Start difference. First operand 229 states and 330 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:47,942 INFO L93 Difference]: Finished difference Result 580 states and 834 transitions. [2024-11-14 03:48:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:48:47,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:48:47,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:47,946 INFO L225 Difference]: With dead ends: 580 [2024-11-14 03:48:47,946 INFO L226 Difference]: Without dead ends: 354 [2024-11-14 03:48:47,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-14 03:48:47,950 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 67 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:47,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 955 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:48:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-14 03:48:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 292. [2024-11-14 03:48:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 262 states have (on average 1.3969465648854962) internal successors, (366), 263 states have internal predecessors, (366), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:48:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 418 transitions. [2024-11-14 03:48:47,982 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 418 transitions. Word has length 148 [2024-11-14 03:48:47,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:47,983 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 418 transitions. [2024-11-14 03:48:47,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:47,984 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 418 transitions. [2024-11-14 03:48:47,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:48:47,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:47,988 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:47,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Ended with exit code 0 [2024-11-14 03:48:48,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:48,189 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:48,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1749866868, now seen corresponding path program 1 times [2024-11-14 03:48:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011817979] [2024-11-14 03:48:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:48,189 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 03:48:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:48,191 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:48,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:48,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:48:48,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:49,314 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 03:48:49,884 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 69 treesize of output 54 [2024-11-14 03:48:50,288 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 69 treesize of output 54 [2024-11-14 03:48:50,661 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 69 treesize of output 54 [2024-11-14 03:48:51,046 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 69 treesize of output 54 [2024-11-14 03:48:51,499 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 69 treesize of output 54 [2024-11-14 03:48:51,987 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 114 treesize of output 87 [2024-11-14 03:48:52,126 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 114 treesize of output 87 [2024-11-14 03:48:52,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:48:52,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:48:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 128 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:48:52,333 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:48:52,695 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:48:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011817979] [2024-11-14 03:48:52,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011817979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:48:52,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [62537865] [2024-11-14 03:48:52,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:52,696 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:48:52,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:48:52,698 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:48:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 03:48:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:53,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:48:53,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:54,694 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 03:48:55,022 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 69 treesize of output 54 [2024-11-14 03:48:55,389 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 69 treesize of output 54 [2024-11-14 03:48:55,754 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 69 treesize of output 54 [2024-11-14 03:48:56,116 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 69 treesize of output 54 [2024-11-14 03:48:56,485 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 69 treesize of output 54 [2024-11-14 03:48:56,851 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 114 treesize of output 87 [2024-11-14 03:48:56,906 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 114 treesize of output 87 [2024-11-14 03:48:56,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:48:56,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:48:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 128 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:48:57,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:48:57,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [62537865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:48:57,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833868523] [2024-11-14 03:48:57,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:57,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:48:57,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:48:57,318 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:48:57,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:48:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:48:57,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:48:57,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:48:57,915 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 43 treesize of output 19 [2024-11-14 03:48:57,952 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 43 treesize of output 19 [2024-11-14 03:48:58,054 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:48:58,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:48:58,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833868523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:48:58,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:48:58,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 11] total 15 [2024-11-14 03:48:58,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328151009] [2024-11-14 03:48:58,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:48:58,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:48:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:48:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:48:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=417, Unknown=12, NotChecked=0, Total=506 [2024-11-14 03:48:58,055 INFO L87 Difference]: Start difference. First operand 292 states and 418 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:48:58,969 INFO L93 Difference]: Finished difference Result 641 states and 918 transitions. [2024-11-14 03:48:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:48:58,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:48:58,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:48:58,974 INFO L225 Difference]: With dead ends: 641 [2024-11-14 03:48:58,974 INFO L226 Difference]: Without dead ends: 352 [2024-11-14 03:48:58,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 478 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=77, Invalid=417, Unknown=12, NotChecked=0, Total=506 [2024-11-14 03:48:58,977 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 223 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:48:58,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 261 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-14 03:48:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-14 03:48:58,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 292. [2024-11-14 03:48:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 262 states have (on average 1.3893129770992367) internal successors, (364), 263 states have internal predecessors, (364), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:48:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 416 transitions. [2024-11-14 03:48:59,000 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 416 transitions. Word has length 148 [2024-11-14 03:48:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:48:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 416 transitions. [2024-11-14 03:48:59,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:48:59,001 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 416 transitions. [2024-11-14 03:48:59,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:48:59,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:48:59,003 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:59,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:59,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:48:59,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-14 03:48:59,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:48:59,604 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:48:59,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:48:59,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2144670549, now seen corresponding path program 1 times [2024-11-14 03:48:59,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:48:59,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873175569] [2024-11-14 03:48:59,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:48:59,605 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 03:48:59,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:48:59,609 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:59,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:48:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:00,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:49:00,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:00,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:00,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2024-11-14 03:49:00,102 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:49:00,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:00,102 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:00,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873175569] [2024-11-14 03:49:00,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873175569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:00,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:00,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:49:00,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631422677] [2024-11-14 03:49:00,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:00,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:49:00,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:49:00,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:49:00,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:49:00,104 INFO L87 Difference]: Start difference. First operand 292 states and 416 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:00,607 INFO L93 Difference]: Finished difference Result 587 states and 837 transitions. [2024-11-14 03:49:00,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:49:00,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:49:00,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:00,610 INFO L225 Difference]: With dead ends: 587 [2024-11-14 03:49:00,610 INFO L226 Difference]: Without dead ends: 298 [2024-11-14 03:49:00,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 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 03:49:00,616 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:00,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 512 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:49:00,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-14 03:49:00,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-14 03:49:00,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 268 states have (on average 1.3805970149253732) internal successors, (370), 269 states have internal predecessors, (370), 26 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-14 03:49:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 422 transitions. [2024-11-14 03:49:00,639 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 422 transitions. Word has length 148 [2024-11-14 03:49:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:00,640 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 422 transitions. [2024-11-14 03:49:00,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 422 transitions. [2024-11-14 03:49:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:49:00,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:00,645 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:00,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:00,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:00,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:00,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:00,846 INFO L85 PathProgramCache]: Analyzing trace with hash -756636044, now seen corresponding path program 1 times [2024-11-14 03:49:00,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:49:00,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615231974] [2024-11-14 03:49:00,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:00,846 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 03:49:00,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:49:00,848 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:00,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:01,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:49:01,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:02,564 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 69 treesize of output 54 [2024-11-14 03:49:02,945 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 69 treesize of output 54 [2024-11-14 03:49:03,306 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 69 treesize of output 54 [2024-11-14 03:49:03,675 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 69 treesize of output 54 [2024-11-14 03:49:04,036 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 69 treesize of output 54 [2024-11-14 03:49:04,498 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 114 treesize of output 87 [2024-11-14 03:49:04,595 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 114 treesize of output 87 [2024-11-14 03:49:04,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:04,738 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 125 treesize of output 56 [2024-11-14 03:49:04,858 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:04,859 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 125 treesize of output 56 [2024-11-14 03:49:04,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:04,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:49:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 128 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:49:05,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:05,191 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_379 (Array (_ BitVec 32) (_ BitVec 32)))) (not (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) (let ((.cse0 (select (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_379) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) is different from false [2024-11-14 03:49:05,390 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:05,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615231974] [2024-11-14 03:49:05,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615231974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:05,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [295982257] [2024-11-14 03:49:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:05,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:49:05,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:49:05,392 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:49:05,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 03:49:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:06,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:49:06,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:07,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:49:07,990 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 31 treesize of output 26 [2024-11-14 03:49:08,395 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 35 treesize of output 26 [2024-11-14 03:49:08,635 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 35 treesize of output 26 [2024-11-14 03:49:08,955 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 35 treesize of output 26 [2024-11-14 03:49:09,196 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 35 treesize of output 26 [2024-11-14 03:49:09,454 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 35 treesize of output 26 [2024-11-14 03:49:09,809 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 35 treesize of output 26 [2024-11-14 03:49:10,003 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 35 treesize of output 26 [2024-11-14 03:49:10,263 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 44 treesize of output 38 [2024-11-14 03:49:10,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2024-11-14 03:49:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 478 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-14 03:49:10,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:10,671 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_420 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) ((_ sign_extend 24) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_420) |c_~#BOOL_unsigned_char_Array_0~0.base|) (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))))))) is different from false [2024-11-14 03:49:10,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [295982257] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:10,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481797813] [2024-11-14 03:49:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:10,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:10,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:10,682 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:10,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:49:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:10,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-14 03:49:10,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:11,358 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 44 treesize of output 20 [2024-11-14 03:49:11,399 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 44 treesize of output 20 [2024-11-14 03:49:11,437 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 46 treesize of output 22 [2024-11-14 03:49:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:49:11,537 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:11,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481797813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:11,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:49:11,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 16] total 30 [2024-11-14 03:49:11,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67235061] [2024-11-14 03:49:11,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:11,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:49:11,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:49:11,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:49:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1267, Unknown=2, NotChecked=146, Total=1560 [2024-11-14 03:49:11,539 INFO L87 Difference]: Start difference. First operand 298 states and 422 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:13,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:13,131 INFO L93 Difference]: Finished difference Result 742 states and 1050 transitions. [2024-11-14 03:49:13,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:49:13,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:49:13,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:13,135 INFO L225 Difference]: With dead ends: 742 [2024-11-14 03:49:13,135 INFO L226 Difference]: Without dead ends: 447 [2024-11-14 03:49:13,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=152, Invalid=1336, Unknown=2, NotChecked=150, Total=1640 [2024-11-14 03:49:13,139 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 180 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:13,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 419 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:49:13,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2024-11-14 03:49:13,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 443. [2024-11-14 03:49:13,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 399 states have (on average 1.3784461152882206) internal successors, (550), 402 states have internal predecessors, (550), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:49:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 626 transitions. [2024-11-14 03:49:13,174 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 626 transitions. Word has length 148 [2024-11-14 03:49:13,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:13,176 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 626 transitions. [2024-11-14 03:49:13,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:13,176 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 626 transitions. [2024-11-14 03:49:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:49:13,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:13,178 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:13,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 03:49:13,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:49:13,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:13,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:13,783 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:13,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:13,783 INFO L85 PathProgramCache]: Analyzing trace with hash -55571466, now seen corresponding path program 1 times [2024-11-14 03:49:13,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:49:13,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914284158] [2024-11-14 03:49:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:13,784 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 03:49:13,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:49:13,786 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:13,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:14,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:49:14,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:14,875 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 03:49:15,263 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 69 treesize of output 54 [2024-11-14 03:49:15,536 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 69 treesize of output 54 [2024-11-14 03:49:15,803 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 69 treesize of output 54 [2024-11-14 03:49:16,079 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 69 treesize of output 54 [2024-11-14 03:49:16,358 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 69 treesize of output 54 [2024-11-14 03:49:16,736 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 114 treesize of output 87 [2024-11-14 03:49:16,824 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 114 treesize of output 87 [2024-11-14 03:49:16,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:16,996 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 170 treesize of output 89 [2024-11-14 03:49:17,173 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:17,173 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 170 treesize of output 80 [2024-11-14 03:49:17,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:17,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 199 treesize of output 73 [2024-11-14 03:49:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 380 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:49:17,651 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:18,095 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_488 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_98| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_98|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_98|))) (.cse1 (let ((.cse2 (select (select (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_488) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (or (not (= .cse0 .cse1)) (fp.eq .cse0 .cse1)))) is different from false [2024-11-14 03:49:18,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:18,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914284158] [2024-11-14 03:49:18,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914284158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:18,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [150019511] [2024-11-14 03:49:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:18,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:49:18,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:49:18,510 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:49:18,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:49:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:20,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:49:20,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:20,441 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 03:49:21,687 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 39 treesize of output 30 [2024-11-14 03:49:22,163 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 43 treesize of output 32 [2024-11-14 03:49:22,394 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 43 treesize of output 32 [2024-11-14 03:49:22,734 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 43 treesize of output 32 [2024-11-14 03:49:23,020 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 43 treesize of output 32 [2024-11-14 03:49:23,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-11-14 03:49:23,679 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 43 treesize of output 32 [2024-11-14 03:49:23,901 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 43 treesize of output 32 [2024-11-14 03:49:24,250 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 52 treesize of output 42 [2024-11-14 03:49:24,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2024-11-14 03:49:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 50 proven. 478 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:49:24,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:24,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [150019511] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:24,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821062012] [2024-11-14 03:49:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:24,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:24,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:24,919 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:24,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:49:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:25,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:49:25,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:25,591 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 89 treesize of output 53 [2024-11-14 03:49:25,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:25,928 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 116 treesize of output 53 [2024-11-14 03:49:26,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:26,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 145 treesize of output 55 [2024-11-14 03:49:26,713 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:49:26,713 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:49:28,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821062012] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:28,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:49:28,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [17, 17, 14] total 50 [2024-11-14 03:49:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734835349] [2024-11-14 03:49:28,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:28,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:49:28,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:49:28,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:49:28,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=3037, Unknown=26, NotChecked=112, Total=3422 [2024-11-14 03:49:28,151 INFO L87 Difference]: Start difference. First operand 443 states and 626 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:32,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-14 03:49:35,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:35,125 INFO L93 Difference]: Finished difference Result 1078 states and 1515 transitions. [2024-11-14 03:49:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:49:35,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:49:35,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:35,130 INFO L225 Difference]: With dead ends: 1078 [2024-11-14 03:49:35,130 INFO L226 Difference]: Without dead ends: 638 [2024-11-14 03:49:35,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1194 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=301, Invalid=3709, Unknown=26, NotChecked=124, Total=4160 [2024-11-14 03:49:35,133 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 125 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:35,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1644 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 933 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2024-11-14 03:49:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-14 03:49:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 485. [2024-11-14 03:49:35,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 441 states have (on average 1.3673469387755102) internal successors, (603), 444 states have internal predecessors, (603), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:49:35,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 679 transitions. [2024-11-14 03:49:35,160 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 679 transitions. Word has length 148 [2024-11-14 03:49:35,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:35,161 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 679 transitions. [2024-11-14 03:49:35,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:35,161 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 679 transitions. [2024-11-14 03:49:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:49:35,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:35,163 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:35,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-14 03:49:35,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:35,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:49:35,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:35,764 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:35,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:35,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1896049833, now seen corresponding path program 1 times [2024-11-14 03:49:35,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:49:35,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799269036] [2024-11-14 03:49:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:35,765 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 03:49:35,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:49:35,767 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:35,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:36,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:49:36,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:36,858 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 03:49:37,399 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 69 treesize of output 54 [2024-11-14 03:49:37,758 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 69 treesize of output 54 [2024-11-14 03:49:38,122 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 69 treesize of output 54 [2024-11-14 03:49:38,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2024-11-14 03:49:38,853 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 69 treesize of output 54 [2024-11-14 03:49:39,308 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 114 treesize of output 87 [2024-11-14 03:49:39,419 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 114 treesize of output 87 [2024-11-14 03:49:39,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:39,561 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 125 treesize of output 56 [2024-11-14 03:49:39,672 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:39,672 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 125 treesize of output 56 [2024-11-14 03:49:39,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:39,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:49:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 128 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:49:39,871 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:40,242 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:40,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799269036] [2024-11-14 03:49:40,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799269036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:40,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1272198314] [2024-11-14 03:49:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:40,243 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:49:40,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:49:40,244 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:49:40,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 03:49:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:41,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:49:41,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:41,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2024-11-14 03:49:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:49:41,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:49:41,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1272198314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:41,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:49:41,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2024-11-14 03:49:41,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950182142] [2024-11-14 03:49:41,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:41,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:49:41,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:49:41,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:49:41,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=311, Unknown=6, NotChecked=0, Total=380 [2024-11-14 03:49:41,923 INFO L87 Difference]: Start difference. First operand 485 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:42,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:42,787 INFO L93 Difference]: Finished difference Result 1017 states and 1421 transitions. [2024-11-14 03:49:42,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:49:42,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-14 03:49:42,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:42,790 INFO L225 Difference]: With dead ends: 1017 [2024-11-14 03:49:42,790 INFO L226 Difference]: Without dead ends: 535 [2024-11-14 03:49:42,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=63, Invalid=311, Unknown=6, NotChecked=0, Total=380 [2024-11-14 03:49:42,792 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 227 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:42,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 223 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-14 03:49:42,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-14 03:49:42,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 470. [2024-11-14 03:49:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 426 states have (on average 1.363849765258216) internal successors, (581), 429 states have internal predecessors, (581), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:49:42,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 657 transitions. [2024-11-14 03:49:42,818 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 657 transitions. Word has length 148 [2024-11-14 03:49:42,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:42,818 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 657 transitions. [2024-11-14 03:49:42,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:49:42,818 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 657 transitions. [2024-11-14 03:49:42,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 03:49:42,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:42,820 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:42,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-14 03:49:43,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Ended with exit code 0 [2024-11-14 03:49:43,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:43,221 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:43,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1758676877, now seen corresponding path program 1 times [2024-11-14 03:49:43,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:49:43,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1773191185] [2024-11-14 03:49:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:43,222 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 03:49:43,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:49:43,224 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:49:43,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (21)] Waiting until timeout for monitored process [2024-11-14 03:49:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:43,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-14 03:49:43,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:44,417 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 03:49:44,918 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 69 treesize of output 54 [2024-11-14 03:49:45,271 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 69 treesize of output 54 [2024-11-14 03:49:45,730 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 69 treesize of output 54 [2024-11-14 03:49:46,083 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 69 treesize of output 54 [2024-11-14 03:49:46,431 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 69 treesize of output 54 [2024-11-14 03:49:46,893 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 114 treesize of output 87 [2024-11-14 03:49:46,997 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 114 treesize of output 87 [2024-11-14 03:49:47,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:47,280 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 170 treesize of output 89 [2024-11-14 03:49:47,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:47,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 170 treesize of output 80 [2024-11-14 03:49:47,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:47,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 223 treesize of output 85 [2024-11-14 03:49:48,244 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 252 proven. 128 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-14 03:49:48,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:49,526 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1773191185] [2024-11-14 03:49:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1773191185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:49,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [827394086] [2024-11-14 03:49:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:49,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:49:49,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:49:49,528 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:49:49,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 03:49:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:51,115 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 03:49:51,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:51,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:49:52,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-14 03:49:53,176 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 30 treesize of output 21 [2024-11-14 03:49:53,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:49:53,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:49:53,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:49:54,121 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 30 treesize of output 28 [2024-11-14 03:49:54,299 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 34 treesize of output 23 [2024-11-14 03:49:54,594 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 46 treesize of output 31 [2024-11-14 03:49:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 257 proven. 158 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 03:49:54,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:55,188 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_710) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) (forall ((v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_709) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse1 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse1 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) is different from false [2024-11-14 03:49:55,236 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|))) (let ((.cse2 (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| (let ((.cse4 (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|))) (store .cse4 .cse1 (select .cse4 |c_~#unsigned_long_int_Array_0~0.offset|)))))) (or (forall ((v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_710) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 .cse1))))) (forall ((v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_709) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse3 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse3 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))))) is different from false [2024-11-14 03:49:55,285 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_709 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_706 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_710 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|))) (let ((.cse1 (let ((.cse4 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_706))) (store .cse4 |c_~#unsigned_long_int_Array_0~0.base| (let ((.cse5 (select .cse4 |c_~#unsigned_long_int_Array_0~0.base|))) (store .cse5 .cse3 (select .cse5 |c_~#unsigned_long_int_Array_0~0.offset|))))))) (or (let ((.cse0 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_709) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))) (not (let ((.cse2 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_710) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse2 .cse3) (select .cse2 |c_~#unsigned_long_int_Array_0~0.offset|)))))))) is different from false [2024-11-14 03:49:55,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [827394086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340802572] [2024-11-14 03:49:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:55,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:55,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:55,413 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:55,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-14 03:49:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:55,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 03:49:55,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:56,097 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 65 treesize of output 41 [2024-11-14 03:49:56,595 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:56,595 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 115 treesize of output 58 [2024-11-14 03:49:57,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:49:57,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 117 treesize of output 45 [2024-11-14 03:49:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:49:57,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:49:58,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340802572] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:58,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:49:58,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18, 14, 13] total 47 [2024-11-14 03:49:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723318260] [2024-11-14 03:49:58,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:58,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:49:58,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:49:58,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:49:58,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=3279, Unknown=20, NotChecked=354, Total=3906 [2024-11-14 03:49:58,511 INFO L87 Difference]: Start difference. First operand 470 states and 657 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:01,249 INFO L93 Difference]: Finished difference Result 1098 states and 1529 transitions. [2024-11-14 03:50:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:50:01,250 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-14 03:50:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:01,252 INFO L225 Difference]: With dead ends: 1098 [2024-11-14 03:50:01,253 INFO L226 Difference]: Without dead ends: 631 [2024-11-14 03:50:01,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 592 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1587 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=319, Invalid=3963, Unknown=20, NotChecked=390, Total=4692 [2024-11-14 03:50:01,257 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 230 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:01,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1379 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 03:50:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-14 03:50:01,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 488. [2024-11-14 03:50:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 444 states have (on average 1.3761261261261262) internal successors, (611), 447 states have internal predecessors, (611), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:50:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 687 transitions. [2024-11-14 03:50:01,287 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 687 transitions. Word has length 149 [2024-11-14 03:50:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:01,289 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 687 transitions. [2024-11-14 03:50:01,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 687 transitions. [2024-11-14 03:50:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 03:50:01,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:01,292 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:01,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (21)] Ended with exit code 0 [2024-11-14 03:50:01,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-14 03:50:01,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2024-11-14 03:50:01,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:50:01,893 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:01,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash -2113588593, now seen corresponding path program 1 times [2024-11-14 03:50:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019185227] [2024-11-14 03:50:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:01,894 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 03:50:01,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:01,895 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:01,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:02,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:50:02,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:03,544 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 30 treesize of output 21 [2024-11-14 03:50:03,597 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 30 treesize of output 21 [2024-11-14 03:50:03,735 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 65 treesize of output 29 [2024-11-14 03:50:03,747 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 67 treesize of output 31 [2024-11-14 03:50:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:50:03,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:50:03,812 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:03,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019185227] [2024-11-14 03:50:03,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019185227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:03,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:50:03,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:50:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076148983] [2024-11-14 03:50:03,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:03,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:50:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:50:03,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:50:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:50:03,813 INFO L87 Difference]: Start difference. First operand 488 states and 687 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:08,682 INFO L93 Difference]: Finished difference Result 1351 states and 1895 transitions. [2024-11-14 03:50:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:50:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-14 03:50:08,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:08,686 INFO L225 Difference]: With dead ends: 1351 [2024-11-14 03:50:08,686 INFO L226 Difference]: Without dead ends: 866 [2024-11-14 03:50:08,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:50:08,687 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 448 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:08,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 445 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-14 03:50:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-14 03:50:08,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 615. [2024-11-14 03:50:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 571 states have (on average 1.3852889667250439) internal successors, (791), 574 states have internal predecessors, (791), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 35 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:50:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 867 transitions. [2024-11-14 03:50:08,720 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 867 transitions. Word has length 149 [2024-11-14 03:50:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:08,721 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 867 transitions. [2024-11-14 03:50:08,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 867 transitions. [2024-11-14 03:50:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 03:50:08,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:08,723 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:08,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:08,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:08,924 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:08,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:08,924 INFO L85 PathProgramCache]: Analyzing trace with hash -872880992, now seen corresponding path program 1 times [2024-11-14 03:50:08,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:08,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387649373] [2024-11-14 03:50:08,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:08,924 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 03:50:08,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:08,928 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:08,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:09,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:50:09,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:10,600 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 69 treesize of output 54 [2024-11-14 03:50:10,959 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 69 treesize of output 54 [2024-11-14 03:50:11,310 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 69 treesize of output 54 [2024-11-14 03:50:11,653 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 69 treesize of output 54 [2024-11-14 03:50:11,945 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 69 treesize of output 54 [2024-11-14 03:50:12,340 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 114 treesize of output 87 [2024-11-14 03:50:12,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:12,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:50:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:50:12,583 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:12,830 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387649373] [2024-11-14 03:50:12,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387649373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:12,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2126349491] [2024-11-14 03:50:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:12,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:50:12,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:50:12,832 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:50:12,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-14 03:50:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:13,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:50:13,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:14,683 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 03:50:14,999 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 69 treesize of output 54 [2024-11-14 03:50:15,359 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 69 treesize of output 54 [2024-11-14 03:50:15,731 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 69 treesize of output 54 [2024-11-14 03:50:16,038 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 69 treesize of output 54 [2024-11-14 03:50:16,336 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 69 treesize of output 54 [2024-11-14 03:50:16,638 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 114 treesize of output 87 [2024-11-14 03:50:16,747 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:16,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:50:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:50:16,830 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:16,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2126349491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454636820] [2024-11-14 03:50:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:16,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:16,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:16,938 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:16,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-14 03:50:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:17,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 03:50:17,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:18,182 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 44 treesize of output 20 [2024-11-14 03:50:18,394 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 24 [2024-11-14 03:50:18,665 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 24 [2024-11-14 03:50:18,925 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 24 [2024-11-14 03:50:19,214 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 24 [2024-11-14 03:50:19,417 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 24 [2024-11-14 03:50:19,727 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 24 [2024-11-14 03:50:19,851 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 46 treesize of output 22 [2024-11-14 03:50:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 144 proven. 320 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-14 03:50:19,936 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:19,964 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_873 (Array (_ BitVec 32) (_ BitVec 32)))) (not (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) (let ((.cse0 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_873) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) is different from false [2024-11-14 03:50:19,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454636820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:19,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:50:19,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 9] total 18 [2024-11-14 03:50:19,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539001059] [2024-11-14 03:50:19,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:50:19,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-14 03:50:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:50:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-14 03:50:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=427, Unknown=1, NotChecked=42, Total=552 [2024-11-14 03:50:19,987 INFO L87 Difference]: Start difference. First operand 615 states and 867 transitions. Second operand has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 7 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-14 03:50:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:28,216 INFO L93 Difference]: Finished difference Result 2815 states and 3969 transitions. [2024-11-14 03:50:28,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 03:50:28,217 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 7 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) Word has length 149 [2024-11-14 03:50:28,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:28,224 INFO L225 Difference]: With dead ends: 2815 [2024-11-14 03:50:28,224 INFO L226 Difference]: Without dead ends: 2203 [2024-11-14 03:50:28,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 514 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=287, Invalid=1198, Unknown=1, NotChecked=74, Total=1560 [2024-11-14 03:50:28,226 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 1826 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:28,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 852 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-14 03:50:28,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2024-11-14 03:50:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 1567. [2024-11-14 03:50:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1422 states have (on average 1.380450070323488) internal successors, (1963), 1438 states have internal predecessors, (1963), 128 states have call successors, (128), 16 states have call predecessors, (128), 16 states have return successors, (128), 112 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-14 03:50:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2219 transitions. [2024-11-14 03:50:28,346 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2219 transitions. Word has length 149 [2024-11-14 03:50:28,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:28,346 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2219 transitions. [2024-11-14 03:50:28,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.578947368421052) internal successors, (106), 18 states have internal predecessors, (106), 7 states have call successors, (30), 7 states have call predecessors, (30), 7 states have return successors, (30), 7 states have call predecessors, (30), 7 states have call successors, (30) [2024-11-14 03:50:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2219 transitions. [2024-11-14 03:50:28,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 03:50:28,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:28,351 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:28,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-14 03:50:28,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Ended with exit code 0 [2024-11-14 03:50:28,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2024-11-14 03:50:28,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:50:28,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:28,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1616647970, now seen corresponding path program 1 times [2024-11-14 03:50:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:28,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069467701] [2024-11-14 03:50:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:28,953 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 03:50:28,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:28,955 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:28,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:29,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:50:29,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:30,255 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 03:50:30,374 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 27 treesize of output 20 [2024-11-14 03:50:30,419 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 27 treesize of output 20 [2024-11-14 03:50:30,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:30,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 17 [2024-11-14 03:50:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:50:30,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:50:30,482 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069467701] [2024-11-14 03:50:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069467701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:50:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:50:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287606621] [2024-11-14 03:50:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:30,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:50:30,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:50:30,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:50:30,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:50:30,483 INFO L87 Difference]: Start difference. First operand 1567 states and 2219 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:32,696 INFO L93 Difference]: Finished difference Result 3135 states and 4431 transitions. [2024-11-14 03:50:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:50:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 149 [2024-11-14 03:50:32,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:32,703 INFO L225 Difference]: With dead ends: 3135 [2024-11-14 03:50:32,704 INFO L226 Difference]: Without dead ends: 1571 [2024-11-14 03:50:32,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:50:32,707 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 291 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:32,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 466 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:50:32,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2024-11-14 03:50:32,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1565. [2024-11-14 03:50:32,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1403 states have (on average 1.3663578047042053) internal successors, (1917), 1423 states have internal predecessors, (1917), 140 states have call successors, (140), 21 states have call predecessors, (140), 21 states have return successors, (140), 120 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-14 03:50:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2197 transitions. [2024-11-14 03:50:32,822 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2197 transitions. Word has length 149 [2024-11-14 03:50:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:32,823 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2197 transitions. [2024-11-14 03:50:32,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2197 transitions. [2024-11-14 03:50:32,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:50:32,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:32,828 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:32,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,033 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash 741563721, now seen corresponding path program 1 times [2024-11-14 03:50:33,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:33,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574762464] [2024-11-14 03:50:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:33,034 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 03:50:33,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:33,036 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:33,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 03:50:33,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:50:33,501 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:50:33,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:33,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574762464] [2024-11-14 03:50:33,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574762464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:50:33,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:50:33,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:50:33,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109065723] [2024-11-14 03:50:33,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:50:33,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:50:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:50:33,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:50:33,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:50:33,503 INFO L87 Difference]: Start difference. First operand 1565 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:33,599 INFO L93 Difference]: Finished difference Result 3068 states and 4317 transitions. [2024-11-14 03:50:33,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:50:33,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:50:33,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:33,609 INFO L225 Difference]: With dead ends: 3068 [2024-11-14 03:50:33,609 INFO L226 Difference]: Without dead ends: 1569 [2024-11-14 03:50:33,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:50:33,612 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:33,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:50:33,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2024-11-14 03:50:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1569. [2024-11-14 03:50:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1407 states have (on average 1.365316275764037) internal successors, (1921), 1427 states have internal predecessors, (1921), 140 states have call successors, (140), 21 states have call predecessors, (140), 21 states have return successors, (140), 120 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-14 03:50:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2201 transitions. [2024-11-14 03:50:33,716 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2201 transitions. Word has length 151 [2024-11-14 03:50:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2201 transitions. [2024-11-14 03:50:33,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:50:33,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2201 transitions. [2024-11-14 03:50:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:50:33,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:33,720 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:33,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Ended with exit code 0 [2024-11-14 03:50:33,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,920 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:33,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash 764195975, now seen corresponding path program 1 times [2024-11-14 03:50:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890066464] [2024-11-14 03:50:33,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:33,921 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 03:50:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:33,923 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:33,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:34,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:50:34,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:34,588 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 03:50:34,985 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 37 treesize of output 30 [2024-11-14 03:50:35,324 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 32 [2024-11-14 03:50:35,529 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 32 [2024-11-14 03:50:35,743 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 32 [2024-11-14 03:50:35,972 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 32 [2024-11-14 03:50:36,241 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 32 [2024-11-14 03:50:36,464 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 32 [2024-11-14 03:50:36,641 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 32 [2024-11-14 03:50:36,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:36,861 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 42 [2024-11-14 03:50:36,929 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:36,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 24 [2024-11-14 03:50:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 478 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-14 03:50:36,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:37,095 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_968 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) ((_ sign_extend 24) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_968) |c_~#BOOL_unsigned_char_Array_0~0.base|) (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))))))) is different from false [2024-11-14 03:50:37,103 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:37,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890066464] [2024-11-14 03:50:37,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1890066464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:37,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1744992810] [2024-11-14 03:50:37,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:37,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:50:37,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:50:37,106 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:50:37,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-14 03:50:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:38,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 03:50:38,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:39,733 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 15 treesize of output 1 [2024-11-14 03:50:40,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-14 03:50:40,674 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 30 treesize of output 21 [2024-11-14 03:50:40,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:50:41,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:50:41,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:50:41,608 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 30 treesize of output 28 [2024-11-14 03:50:41,743 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 34 treesize of output 23 [2024-11-14 03:50:41,936 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 46 treesize of output 31 [2024-11-14 03:50:41,940 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 257 proven. 158 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 03:50:41,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:42,307 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1008) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) (forall ((v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1007) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse1 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse1 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) is different from false [2024-11-14 03:50:42,351 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|))) (let ((.cse2 (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| (let ((.cse4 (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|))) (store .cse4 .cse1 (select .cse4 |c_~#unsigned_long_int_Array_0~0.offset|)))))) (or (forall ((v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_1008) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 .cse1))))) (forall ((v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_1007) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse3 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse3 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))))) is different from false [2024-11-14 03:50:42,393 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1004 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1007 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1008 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|))) (let ((.cse1 (let ((.cse4 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1004))) (store .cse4 |c_~#unsigned_long_int_Array_0~0.base| (let ((.cse5 (select .cse4 |c_~#unsigned_long_int_Array_0~0.base|))) (store .cse5 .cse3 (select .cse5 |c_~#unsigned_long_int_Array_0~0.offset|))))))) (or (let ((.cse0 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_1007) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|)))) (not (let ((.cse2 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_1008) |c_~#unsigned_long_int_Array_0~0.base|))) (= (select .cse2 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse2 .cse3)))))))) is different from false [2024-11-14 03:50:42,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1744992810] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:42,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177731547] [2024-11-14 03:50:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:42,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:50:42,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:50:42,544 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:50:42,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 03:50:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:42,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:50:42,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:43,235 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 42 treesize of output 20 [2024-11-14 03:50:43,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 24 [2024-11-14 03:50:43,630 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 31 treesize of output 24 [2024-11-14 03:50:43,841 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 31 treesize of output 24 [2024-11-14 03:50:44,012 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 31 treesize of output 24 [2024-11-14 03:50:44,181 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 31 treesize of output 24 [2024-11-14 03:50:44,388 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 31 treesize of output 24 [2024-11-14 03:50:44,533 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 31 treesize of output 24 [2024-11-14 03:50:44,741 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 42 treesize of output 29 [2024-11-14 03:50:44,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:44,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 20 [2024-11-14 03:50:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 478 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-14 03:50:44,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:44,932 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1045 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) ((_ sign_extend 24) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1045) |c_~#BOOL_unsigned_char_Array_0~0.base|) (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))))) (_ bv0 8)))) is different from false [2024-11-14 03:50:44,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177731547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:44,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:50:44,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 15] total 33 [2024-11-14 03:50:44,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778366484] [2024-11-14 03:50:44,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:50:44,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 03:50:44,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:50:44,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 03:50:44,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1548, Unknown=5, NotChecked=420, Total=2162 [2024-11-14 03:50:44,943 INFO L87 Difference]: Start difference. First operand 1569 states and 2201 transitions. Second operand has 34 states, 30 states have (on average 6.0) internal successors, (180), 31 states have internal predecessors, (180), 16 states have call successors, (50), 14 states have call predecessors, (50), 16 states have return successors, (50), 14 states have call predecessors, (50), 16 states have call successors, (50) [2024-11-14 03:50:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:50:53,141 INFO L93 Difference]: Finished difference Result 4447 states and 6087 transitions. [2024-11-14 03:50:53,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 03:50:53,142 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 30 states have (on average 6.0) internal successors, (180), 31 states have internal predecessors, (180), 16 states have call successors, (50), 14 states have call predecessors, (50), 16 states have return successors, (50), 14 states have call predecessors, (50), 16 states have call successors, (50) Word has length 151 [2024-11-14 03:50:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:50:53,151 INFO L225 Difference]: With dead ends: 4447 [2024-11-14 03:50:53,151 INFO L226 Difference]: Without dead ends: 2944 [2024-11-14 03:50:53,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 530 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1854 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1180, Invalid=6145, Unknown=5, NotChecked=860, Total=8190 [2024-11-14 03:50:53,157 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 2040 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:50:53,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 1004 Invalid, 2309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 03:50:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2024-11-14 03:50:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2856. [2024-11-14 03:50:53,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2856 states, 2577 states have (on average 1.350407450523865) internal successors, (3480), 2617 states have internal predecessors, (3480), 196 states have call successors, (196), 82 states have call predecessors, (196), 82 states have return successors, (196), 156 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-14 03:50:53,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 3872 transitions. [2024-11-14 03:50:53,443 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 3872 transitions. Word has length 151 [2024-11-14 03:50:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:50:53,444 INFO L471 AbstractCegarLoop]: Abstraction has 2856 states and 3872 transitions. [2024-11-14 03:50:53,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 30 states have (on average 6.0) internal successors, (180), 31 states have internal predecessors, (180), 16 states have call successors, (50), 14 states have call predecessors, (50), 16 states have return successors, (50), 14 states have call predecessors, (50), 16 states have call successors, (50) [2024-11-14 03:50:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 3872 transitions. [2024-11-14 03:50:53,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:50:53,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:50:53,448 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:53,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-14 03:50:53,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-14 03:50:53,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:54,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:54,049 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:50:54,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:50:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash 314123815, now seen corresponding path program 1 times [2024-11-14 03:50:54,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:50:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689176250] [2024-11-14 03:50:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:54,050 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 03:50:54,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:50:54,052 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:54,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:50:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:54,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:50:54,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:55,025 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 03:50:55,185 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 18 treesize of output 13 [2024-11-14 03:50:55,318 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 18 treesize of output 13 [2024-11-14 03:50:55,482 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 18 treesize of output 13 [2024-11-14 03:50:55,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:50:55,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 22 [2024-11-14 03:50:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-14 03:50:55,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:50:56,008 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1078 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1078))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse1)))))))) is different from false [2024-11-14 03:50:56,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:50:56,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689176250] [2024-11-14 03:50:56,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1689176250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:50:56,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1601822754] [2024-11-14 03:50:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:50:56,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:50:56,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:50:56,058 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:50:56,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-14 03:50:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:50:57,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:50:57,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:50:58,477 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 03:50:58,837 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 18 treesize of output 13 [2024-11-14 03:50:59,032 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 24 treesize of output 23 [2024-11-14 03:50:59,444 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 28 treesize of output 26 [2024-11-14 03:51:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 12 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-11-14 03:51:00,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:00,158 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1111 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1111))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |c_~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))))))) is different from false [2024-11-14 03:51:00,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1601822754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:00,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41716576] [2024-11-14 03:51:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:00,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:00,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:00,207 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:00,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-14 03:51:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:00,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-14 03:51:00,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:01,148 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 03:51:01,258 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 18 treesize of output 13 [2024-11-14 03:51:01,418 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 18 treesize of output 13 [2024-11-14 03:51:01,600 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 18 treesize of output 13 [2024-11-14 03:51:01,651 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:01,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 22 [2024-11-14 03:51:01,695 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-14 03:51:01,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:01,756 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1146 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1146))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse1)))))))) is different from false [2024-11-14 03:51:01,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41716576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:01,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:01,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 20 [2024-11-14 03:51:01,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771079938] [2024-11-14 03:51:01,807 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:01,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-14 03:51:01,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:51:01,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-14 03:51:01,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=538, Unknown=4, NotChecked=150, Total=812 [2024-11-14 03:51:01,809 INFO L87 Difference]: Start difference. First operand 2856 states and 3872 transitions. Second operand has 21 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 7 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-14 03:51:05,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:05,011 INFO L93 Difference]: Finished difference Result 5742 states and 7750 transitions. [2024-11-14 03:51:05,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-14 03:51:05,013 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 7 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) Word has length 151 [2024-11-14 03:51:05,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:05,023 INFO L225 Difference]: With dead ends: 5742 [2024-11-14 03:51:05,024 INFO L226 Difference]: Without dead ends: 2964 [2024-11-14 03:51:05,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=260, Invalid=1008, Unknown=4, NotChecked=210, Total=1482 [2024-11-14 03:51:05,028 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 488 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:05,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 382 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 03:51:05,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2024-11-14 03:51:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2888. [2024-11-14 03:51:05,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2601 states have (on average 1.3429450211457132) internal successors, (3493), 2641 states have internal predecessors, (3493), 196 states have call successors, (196), 90 states have call predecessors, (196), 90 states have return successors, (196), 156 states have call predecessors, (196), 196 states have call successors, (196) [2024-11-14 03:51:05,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 3885 transitions. [2024-11-14 03:51:05,339 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 3885 transitions. Word has length 151 [2024-11-14 03:51:05,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:05,339 INFO L471 AbstractCegarLoop]: Abstraction has 2888 states and 3885 transitions. [2024-11-14 03:51:05,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 6.157894736842105) internal successors, (117), 20 states have internal predecessors, (117), 7 states have call successors, (36), 5 states have call predecessors, (36), 7 states have return successors, (36), 5 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-14 03:51:05,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 3885 transitions. [2024-11-14 03:51:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:51:05,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:05,344 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:05,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-14 03:51:05,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-14 03:51:05,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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)] Ended with exit code 0 [2024-11-14 03:51:05,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:05,945 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:51:05,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:05,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2057615447, now seen corresponding path program 1 times [2024-11-14 03:51:05,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:51:05,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677394188] [2024-11-14 03:51:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:05,946 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 03:51:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:51:05,948 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:05,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (36)] Waiting until timeout for monitored process [2024-11-14 03:51:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:06,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 03:51:06,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:07,392 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 03:51:07,642 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 25 treesize of output 13 [2024-11-14 03:51:07,863 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 29 treesize of output 13 [2024-11-14 03:51:08,099 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 18 treesize of output 13 [2024-11-14 03:51:08,320 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:08,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 39 [2024-11-14 03:51:08,412 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 44 treesize of output 38 [2024-11-14 03:51:08,534 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 44 treesize of output 38 [2024-11-14 03:51:08,697 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:08,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 32 [2024-11-14 03:51:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-14 03:51:08,764 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:08,962 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1184 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1184))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |c_~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|))))) (not (bvsle .cse0 .cse1))))))) is different from false [2024-11-14 03:51:09,112 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1181 (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| (store (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1181)) |c_~#float_Array_0~0.base| v_ArrVal_1184))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |c_~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse1)))))))) is different from false [2024-11-14 03:51:09,745 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1181 (_ BitVec 32)) (v_ArrVal_1180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1180))) (let ((.cse4 (select .cse6 |c_~#unsigned_long_int_Array_0~0.base|))) (let ((.cse7 (store (store .cse6 |c_~#unsigned_long_int_Array_0~0.base| (store .cse4 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1181)) |c_~#float_Array_0~0.base| v_ArrVal_1184))) (let ((.cse8 (select .cse7 |c_~#unsigned_short_int_Array_0~0.base|)) (.cse3 (bvadd (_ bv2 32) |c_~#unsigned_short_int_Array_0~0.offset|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse8 .cse3)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse8 |c_~#unsigned_short_int_Array_0~0.offset|)))) (.cse5 (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|))) (or (not (bvsle .cse0 .cse1)) (let ((.cse2 (select .cse6 |c_~#unsigned_short_int_Array_0~0.base|))) (bvugt ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 .cse3))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select .cse2 |c_~#unsigned_short_int_Array_0~0.offset|))) (select .cse4 .cse5)))) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse7 |c_~#unsigned_long_int_Array_0~0.base|) .cse5))))))))))) is different from false [2024-11-14 03:51:10,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:51:10,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677394188] [2024-11-14 03:51:10,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677394188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:10,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1192214618] [2024-11-14 03:51:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:10,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:51:10,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:51:10,081 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:51:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-14 03:51:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:11,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:51:11,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:12,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:51:13,360 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 16 treesize of output 11 [2024-11-14 03:51:13,584 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 16 treesize of output 11 [2024-11-14 03:51:13,862 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 16 treesize of output 11 [2024-11-14 03:51:13,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-14 03:51:14,049 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 16 treesize of output 11 [2024-11-14 03:51:14,121 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 16 treesize of output 11 [2024-11-14 03:51:14,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:14,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 22 [2024-11-14 03:51:14,367 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-14 03:51:14,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:14,886 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1220 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32))) (let ((.cse2 (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1220))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse1)))))))) is different from false [2024-11-14 03:51:15,069 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1217 (_ BitVec 32)) (v_ArrVal_1220 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| (store (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1217)) |c_~#float_Array_0~0.base| v_ArrVal_1220))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))))))) is different from false [2024-11-14 03:51:15,272 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1217 (_ BitVec 32)) (v_ArrVal_1220 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1216 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store (let ((.cse4 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1216))) (store .cse4 |c_~#unsigned_long_int_Array_0~0.base| (store (select .cse4 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1217))) |c_~#float_Array_0~0.base| v_ArrVal_1220))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))))))) is different from false [2024-11-14 03:51:15,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1192214618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:15,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818809194] [2024-11-14 03:51:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:15,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:15,454 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:15,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-14 03:51:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:15,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:51:15,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:17,027 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 03:51:17,287 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 18 treesize of output 13 [2024-11-14 03:51:17,549 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 18 treesize of output 13 [2024-11-14 03:51:17,882 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 18 treesize of output 13 [2024-11-14 03:51:17,968 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 03:51:18,047 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 18 treesize of output 13 [2024-11-14 03:51:18,128 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 18 treesize of output 13 [2024-11-14 03:51:18,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:18,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 22 [2024-11-14 03:51:18,433 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 251 proven. 12 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2024-11-14 03:51:18,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:18,506 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1257 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1257))) (let ((.cse3 (select .cse1 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse2 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvugt .cse0 (bvadd (select (select .cse1 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse2))) (not (bvsle .cse0 .cse2))))))) is different from false [2024-11-14 03:51:18,665 WARN L851 $PredicateComparison]: unable to prove that (forall ((|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1257 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1255 (_ BitVec 32))) (let ((.cse1 (store (store |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base| (store (select |c_#memory_int| |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1255)) |c_~#float_Array_0~0.base| v_ArrVal_1257))) (let ((.cse3 (select .cse1 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse2 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvugt .cse0 (bvadd (select (select .cse1 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse2))) (not (bvsle .cse0 .cse2))))))) is different from false [2024-11-14 03:51:18,848 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1253 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_short_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1257 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1255 (_ BitVec 32))) (let ((.cse2 (store (let ((.cse4 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1253))) (store .cse4 |c_~#unsigned_long_int_Array_0~0.base| (store (select .cse4 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|) v_ArrVal_1255))) |c_~#float_Array_0~0.base| v_ArrVal_1257))) (let ((.cse3 (select .cse2 |c_~#unsigned_short_int_Array_0~0.base|))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 (bvadd |~#unsigned_short_int_Array_0~0.offset| (_ bv2 32)))))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select .cse3 |~#unsigned_short_int_Array_0~0.offset|))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd (select (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#unsigned_long_int_Array_0~0.offset|)) .cse1)))))))) is different from false [2024-11-14 03:51:19,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818809194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:19,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:51:19,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 22 [2024-11-14 03:51:19,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181801417] [2024-11-14 03:51:19,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:51:19,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:51:19,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:51:19,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:51:19,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=668, Unknown=15, NotChecked=558, Total=1406 [2024-11-14 03:51:19,023 INFO L87 Difference]: Start difference. First operand 2888 states and 3885 transitions. Second operand has 23 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 6 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-14 03:51:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:25,520 INFO L93 Difference]: Finished difference Result 5868 states and 7849 transitions. [2024-11-14 03:51:25,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-14 03:51:25,521 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 6 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) Word has length 151 [2024-11-14 03:51:25,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:25,532 INFO L225 Difference]: With dead ends: 5868 [2024-11-14 03:51:25,532 INFO L226 Difference]: Without dead ends: 3058 [2024-11-14 03:51:25,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 514 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=404, Invalid=1339, Unknown=15, NotChecked=792, Total=2550 [2024-11-14 03:51:25,537 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 685 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:25,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 687 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-14 03:51:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2024-11-14 03:51:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2968. [2024-11-14 03:51:25,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2653 states have (on average 1.3275537127779873) internal successors, (3522), 2693 states have internal predecessors, (3522), 212 states have call successors, (212), 102 states have call predecessors, (212), 102 states have return successors, (212), 172 states have call predecessors, (212), 212 states have call successors, (212) [2024-11-14 03:51:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 3946 transitions. [2024-11-14 03:51:25,893 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 3946 transitions. Word has length 151 [2024-11-14 03:51:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:25,893 INFO L471 AbstractCegarLoop]: Abstraction has 2968 states and 3946 transitions. [2024-11-14 03:51:25,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 6.761904761904762) internal successors, (142), 22 states have internal predecessors, (142), 6 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 4 states have call predecessors, (36), 6 states have call successors, (36) [2024-11-14 03:51:25,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 3946 transitions. [2024-11-14 03:51:25,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:51:25,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:25,898 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:25,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (36)] Ended with exit code 0 [2024-11-14 03:51:26,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-14 03:51:26,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-14 03:51:26,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:51:26,499 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:51:26,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1650545835, now seen corresponding path program 1 times [2024-11-14 03:51:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:51:26,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103188135] [2024-11-14 03:51:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:26,500 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 03:51:26,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:51:26,502 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:26,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (39)] Waiting until timeout for monitored process [2024-11-14 03:51:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:27,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:51:27,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:28,268 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 03:51:28,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:51:28,616 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 03:51:28,821 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 03:51:28,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:28,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 49 [2024-11-14 03:51:29,167 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 45 treesize of output 37 [2024-11-14 03:51:29,339 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 45 treesize of output 37 [2024-11-14 03:51:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:51:29,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:51:29,956 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:51:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103188135] [2024-11-14 03:51:29,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103188135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:29,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:29,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 03:51:29,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066907585] [2024-11-14 03:51:29,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:29,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:51:29,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:51:29,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:51:29,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:51:29,957 INFO L87 Difference]: Start difference. First operand 2968 states and 3946 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:51:33,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:40,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:51:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:43,772 INFO L93 Difference]: Finished difference Result 5880 states and 7815 transitions. [2024-11-14 03:51:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:51:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:51:43,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:43,787 INFO L225 Difference]: With dead ends: 5880 [2024-11-14 03:51:43,787 INFO L226 Difference]: Without dead ends: 2990 [2024-11-14 03:51:43,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-14 03:51:43,793 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 296 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:43,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 960 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2024-11-14 03:51:43,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2024-11-14 03:51:44,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2108. [2024-11-14 03:51:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1897 states have (on average 1.3379019504480758) internal successors, (2538), 1921 states have internal predecessors, (2538), 140 states have call successors, (140), 70 states have call predecessors, (140), 70 states have return successors, (140), 116 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-14 03:51:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 2818 transitions. [2024-11-14 03:51:44,081 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 2818 transitions. Word has length 151 [2024-11-14 03:51:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:44,082 INFO L471 AbstractCegarLoop]: Abstraction has 2108 states and 2818 transitions. [2024-11-14 03:51:44,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:51:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 2818 transitions. [2024-11-14 03:51:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:51:44,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:44,086 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:44,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (39)] Forceful destruction successful, exit code 0 [2024-11-14 03:51:44,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:44,287 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:51:44,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:44,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2082751245, now seen corresponding path program 1 times [2024-11-14 03:51:44,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:51:44,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791622274] [2024-11-14 03:51:44,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:44,288 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 03:51:44,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:51:44,290 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:44,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (40)] Waiting until timeout for monitored process [2024-11-14 03:51:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:44,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:51:44,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:45,610 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 03:51:45,749 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 22 treesize of output 15 [2024-11-14 03:51:45,826 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 22 treesize of output 15 [2024-11-14 03:51:45,913 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:45,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 10 [2024-11-14 03:51:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:51:45,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:51:45,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:51:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791622274] [2024-11-14 03:51:45,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791622274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:51:45,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:51:45,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:51:45,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220455478] [2024-11-14 03:51:45,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:51:45,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:51:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:51:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:51:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:51:45,953 INFO L87 Difference]: Start difference. First operand 2108 states and 2818 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:51:47,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:51:47,487 INFO L93 Difference]: Finished difference Result 4288 states and 5757 transitions. [2024-11-14 03:51:47,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:51:47,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:51:47,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:51:47,498 INFO L225 Difference]: With dead ends: 4288 [2024-11-14 03:51:47,498 INFO L226 Difference]: Without dead ends: 2258 [2024-11-14 03:51:47,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:51:47,503 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 252 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:51:47,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 379 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-14 03:51:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2024-11-14 03:51:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2104. [2024-11-14 03:51:47,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 1893 states have (on average 1.3306920232435289) internal successors, (2519), 1917 states have internal predecessors, (2519), 140 states have call successors, (140), 70 states have call predecessors, (140), 70 states have return successors, (140), 116 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-14 03:51:47,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2799 transitions. [2024-11-14 03:51:47,821 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2799 transitions. Word has length 151 [2024-11-14 03:51:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:51:47,821 INFO L471 AbstractCegarLoop]: Abstraction has 2104 states and 2799 transitions. [2024-11-14 03:51:47,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:51:47,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2799 transitions. [2024-11-14 03:51:47,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:51:47,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:51:47,826 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:47,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (40)] Forceful destruction successful, exit code 0 [2024-11-14 03:51:48,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:48,027 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:51:48,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:51:48,028 INFO L85 PathProgramCache]: Analyzing trace with hash -998189239, now seen corresponding path program 1 times [2024-11-14 03:51:48,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:51:48,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444544295] [2024-11-14 03:51:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:48,029 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 03:51:48,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:51:48,031 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:51:48,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (41)] Waiting until timeout for monitored process [2024-11-14 03:51:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:48,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:51:48,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:49,704 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 03:51:50,458 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 69 treesize of output 54 [2024-11-14 03:51:51,017 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 69 treesize of output 54 [2024-11-14 03:51:51,561 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 69 treesize of output 54 [2024-11-14 03:51:52,078 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 69 treesize of output 54 [2024-11-14 03:51:52,553 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 69 treesize of output 54 [2024-11-14 03:51:53,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 87 [2024-11-14 03:51:53,447 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:53,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 125 treesize of output 56 [2024-11-14 03:51:53,625 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:53,625 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 125 treesize of output 56 [2024-11-14 03:51:53,861 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:53,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:51:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:51:54,003 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:54,472 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:51:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444544295] [2024-11-14 03:51:54,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444544295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:54,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [653763788] [2024-11-14 03:51:54,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:54,472 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:51:54,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:51:54,474 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:51:54,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-14 03:51:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:55,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:51:55,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:51:57,161 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 03:51:57,344 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 03:51:57,536 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 03:51:57,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:51:57,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:51:58,058 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:51:58,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 31 treesize of output 11 [2024-11-14 03:51:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-14 03:51:58,137 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:51:58,272 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1392 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1392) |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) is different from false [2024-11-14 03:51:58,701 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1392 (Array (_ BitVec 32) (_ BitVec 32))) (|~#unsigned_long_int_Array_0~0.offset| (_ BitVec 32)) (v_ArrVal_1390 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv12 32) |~#unsigned_long_int_Array_0~0.offset|)) (.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1390))) (or (let ((.cse0 (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse0 |~#unsigned_long_int_Array_0~0.offset|) (select .cse0 .cse1))) (not (let ((.cse3 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_1392) |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse3 |~#unsigned_long_int_Array_0~0.offset|) (select .cse3 .cse1))))))) is different from false [2024-11-14 03:51:58,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [653763788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:51:58,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310006393] [2024-11-14 03:51:58,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:51:58,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:51:58,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:51:58,753 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:51:58,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-14 03:51:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:51:59,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:51:59,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:00,829 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 54 treesize of output 39 [2024-11-14 03:52:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:52:01,160 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:52:01,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310006393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:52:01,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:52:01,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 8] total 22 [2024-11-14 03:52:01,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447256841] [2024-11-14 03:52:01,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:52:01,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:52:01,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:52:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:52:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=750, Unknown=5, NotChecked=114, Total=992 [2024-11-14 03:52:01,162 INFO L87 Difference]: Start difference. First operand 2104 states and 2799 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:03,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:03,863 INFO L93 Difference]: Finished difference Result 4299 states and 5714 transitions. [2024-11-14 03:52:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:52:03,864 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:52:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:03,873 INFO L225 Difference]: With dead ends: 4299 [2024-11-14 03:52:03,873 INFO L226 Difference]: Without dead ends: 2273 [2024-11-14 03:52:03,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=133, Invalid=862, Unknown=5, NotChecked=122, Total=1122 [2024-11-14 03:52:03,881 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 258 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:03,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 245 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 03:52:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2024-11-14 03:52:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2269. [2024-11-14 03:52:04,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2269 states, 2038 states have (on average 1.324828263002944) internal successors, (2700), 2064 states have internal predecessors, (2700), 152 states have call successors, (152), 78 states have call predecessors, (152), 78 states have return successors, (152), 126 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-14 03:52:04,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 2269 states and 3004 transitions. [2024-11-14 03:52:04,152 INFO L78 Accepts]: Start accepts. Automaton has 2269 states and 3004 transitions. Word has length 151 [2024-11-14 03:52:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:04,153 INFO L471 AbstractCegarLoop]: Abstraction has 2269 states and 3004 transitions. [2024-11-14 03:52:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3004 transitions. [2024-11-14 03:52:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:52:04,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:04,157 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:04,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (41)] Forceful destruction successful, exit code 0 [2024-11-14 03:52:04,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2024-11-14 03:52:04,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-14 03:52:04,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:04,758 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:52:04,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:04,758 INFO L85 PathProgramCache]: Analyzing trace with hash -857640629, now seen corresponding path program 1 times [2024-11-14 03:52:04,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:52:04,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850420692] [2024-11-14 03:52:04,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:04,758 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 03:52:04,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:52:04,761 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:52:04,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (44)] Waiting until timeout for monitored process [2024-11-14 03:52:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:05,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:52:05,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:06,204 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 03:52:06,897 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 69 treesize of output 54 [2024-11-14 03:52:07,397 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 69 treesize of output 54 [2024-11-14 03:52:07,885 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 69 treesize of output 54 [2024-11-14 03:52:08,364 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 69 treesize of output 54 [2024-11-14 03:52:08,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2024-11-14 03:52:09,323 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 114 treesize of output 87 [2024-11-14 03:52:09,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:09,741 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 125 treesize of output 56 [2024-11-14 03:52:09,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:09,928 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 125 treesize of output 56 [2024-11-14 03:52:10,130 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:10,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:52:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:52:10,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:10,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:52:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850420692] [2024-11-14 03:52:10,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850420692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1816156125] [2024-11-14 03:52:10,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:10,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:52:10,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:52:10,734 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:52:10,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2024-11-14 03:52:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:11,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 03:52:11,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:13,270 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 03:52:13,468 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 03:52:13,632 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 03:52:13,818 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 03:52:14,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:52:14,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:52:14,337 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:14,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 31 treesize of output 11 [2024-11-14 03:52:14,419 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked. [2024-11-14 03:52:14,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:14,551 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1491 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1491) |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)))))) is different from false [2024-11-14 03:52:14,901 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1491 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1489 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)) (.cse2 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1489))) (or (not (let ((.cse0 (select (store .cse2 |c_~#float_Array_0~0.base| v_ArrVal_1491) |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 .cse1)))) (let ((.cse3 (select .cse2 |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse3 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse3 .cse1)))))) is different from false [2024-11-14 03:52:14,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1816156125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:14,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352729061] [2024-11-14 03:52:14,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:14,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:14,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:52:14,954 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:52:14,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-14 03:52:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:15,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-14 03:52:15,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:16,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:52:16,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:52:16,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:16,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 31 treesize of output 11 [2024-11-14 03:52:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:52:16,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:52:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352729061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:52:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:52:16,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 8] total 18 [2024-11-14 03:52:16,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313442744] [2024-11-14 03:52:16,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:52:16,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:52:16,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:52:16,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:52:16,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=553, Unknown=2, NotChecked=98, Total=756 [2024-11-14 03:52:16,284 INFO L87 Difference]: Start difference. First operand 2269 states and 3004 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:18,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:18,135 INFO L93 Difference]: Finished difference Result 4638 states and 6169 transitions. [2024-11-14 03:52:18,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:52:18,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:52:18,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:18,147 INFO L225 Difference]: With dead ends: 4638 [2024-11-14 03:52:18,147 INFO L226 Difference]: Without dead ends: 2447 [2024-11-14 03:52:18,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=112, Invalid=596, Unknown=2, NotChecked=102, Total=812 [2024-11-14 03:52:18,150 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 153 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:18,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 415 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-14 03:52:18,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-11-14 03:52:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2247. [2024-11-14 03:52:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2247 states, 2016 states have (on average 1.316468253968254) internal successors, (2654), 2042 states have internal predecessors, (2654), 152 states have call successors, (152), 78 states have call predecessors, (152), 78 states have return successors, (152), 126 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-14 03:52:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2247 states to 2247 states and 2958 transitions. [2024-11-14 03:52:18,427 INFO L78 Accepts]: Start accepts. Automaton has 2247 states and 2958 transitions. Word has length 151 [2024-11-14 03:52:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:18,428 INFO L471 AbstractCegarLoop]: Abstraction has 2247 states and 2958 transitions. [2024-11-14 03:52:18,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2247 states and 2958 transitions. [2024-11-14 03:52:18,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:52:18,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:18,432 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:18,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (44)] Ended with exit code 0 [2024-11-14 03:52:18,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2024-11-14 03:52:18,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-14 03:52:19,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:19,033 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:52:19,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:19,033 INFO L85 PathProgramCache]: Analyzing trace with hash 243853828, now seen corresponding path program 1 times [2024-11-14 03:52:19,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:52:19,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042413054] [2024-11-14 03:52:19,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:19,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:52:19,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:52:19,035 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:52:19,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (47)] Waiting until timeout for monitored process [2024-11-14 03:52:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:19,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-14 03:52:19,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:20,593 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 03:52:21,198 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 69 treesize of output 54 [2024-11-14 03:52:21,586 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 69 treesize of output 54 [2024-11-14 03:52:21,974 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 69 treesize of output 54 [2024-11-14 03:52:22,349 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 69 treesize of output 54 [2024-11-14 03:52:22,676 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 69 treesize of output 54 [2024-11-14 03:52:23,036 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 69 treesize of output 54 [2024-11-14 03:52:23,270 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 131 treesize of output 67 [2024-11-14 03:52:23,458 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:23,458 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 131 treesize of output 58 [2024-11-14 03:52:23,725 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:23,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 166 treesize of output 58 [2024-11-14 03:52:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:52:24,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:24,851 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1553 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_268| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_268|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_268|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_268|))) (.cse1 (let ((.cse2 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1553) |c_~#float_Array_0~0.base|) (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (or (fp.eq .cse0 .cse1) (not (= .cse0 .cse1))))) is different from false [2024-11-14 03:52:24,895 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:52:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042413054] [2024-11-14 03:52:24,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042413054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [270392367] [2024-11-14 03:52:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:24,896 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:52:24,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:52:24,897 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:52:24,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-11-14 03:52:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:27,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-14 03:52:27,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:28,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:52:30,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-14 03:52:32,424 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 105 treesize of output 78 [2024-11-14 03:52:33,311 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 105 treesize of output 78 [2024-11-14 03:52:34,221 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 105 treesize of output 78 [2024-11-14 03:52:35,268 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 105 treesize of output 78 [2024-11-14 03:52:36,080 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 105 treesize of output 78 [2024-11-14 03:52:37,418 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 144 treesize of output 105 [2024-11-14 03:52:38,485 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 142 treesize of output 81 [2024-11-14 03:52:39,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 91 [2024-11-14 03:52:40,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 209 treesize of output 89 [2024-11-14 03:52:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 164 proven. 320 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 03:52:40,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:43,611 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:52:43,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [270392367] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:43,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:52:43,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [16, 26] total 47 [2024-11-14 03:52:43,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089924727] [2024-11-14 03:52:43,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:52:43,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:52:43,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:52:43,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:52:43,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=2275, Unknown=1, NotChecked=98, Total=2652 [2024-11-14 03:52:43,613 INFO L87 Difference]: Start difference. First operand 2247 states and 2958 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:51,902 INFO L93 Difference]: Finished difference Result 5262 states and 7014 transitions. [2024-11-14 03:52:51,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:52:51,903 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:52:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:51,912 INFO L225 Difference]: With dead ends: 5262 [2024-11-14 03:52:51,912 INFO L226 Difference]: Without dead ends: 3093 [2024-11-14 03:52:51,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1115 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=390, Invalid=3035, Unknown=1, NotChecked=114, Total=3540 [2024-11-14 03:52:51,917 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 182 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:51,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 1293 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-14 03:52:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2024-11-14 03:52:52,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 2471. [2024-11-14 03:52:52,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2240 states have (on average 1.3125) internal successors, (2940), 2266 states have internal predecessors, (2940), 152 states have call successors, (152), 78 states have call predecessors, (152), 78 states have return successors, (152), 126 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-14 03:52:52,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3244 transitions. [2024-11-14 03:52:52,180 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3244 transitions. Word has length 151 [2024-11-14 03:52:52,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:52,180 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3244 transitions. [2024-11-14 03:52:52,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 13 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:52:52,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3244 transitions. [2024-11-14 03:52:52,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:52:52,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:52,184 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:52,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (47)] Ended with exit code 0 [2024-11-14 03:52:52,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2024-11-14 03:52:52,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:52:52,588 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:52:52,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash -457210750, now seen corresponding path program 1 times [2024-11-14 03:52:52,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:52:52,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476414486] [2024-11-14 03:52:52,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:52,589 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 03:52:52,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:52:52,591 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:52:52,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (49)] Waiting until timeout for monitored process [2024-11-14 03:52:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:53,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:52:53,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:54,349 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 03:52:54,968 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 69 treesize of output 54 [2024-11-14 03:52:55,446 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 69 treesize of output 54 [2024-11-14 03:52:55,928 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 69 treesize of output 54 [2024-11-14 03:52:56,395 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 69 treesize of output 54 [2024-11-14 03:52:56,777 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 69 treesize of output 54 [2024-11-14 03:52:57,289 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 114 treesize of output 87 [2024-11-14 03:52:57,579 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:57,580 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 125 treesize of output 56 [2024-11-14 03:52:57,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:57,722 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 125 treesize of output 56 [2024-11-14 03:52:57,907 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:52:57,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 154 treesize of output 58 [2024-11-14 03:52:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:52:58,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:58,731 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:52:58,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476414486] [2024-11-14 03:52:58,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476414486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:58,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1442580326] [2024-11-14 03:52:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:58,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:52:58,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:52:58,733 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:52:58,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2024-11-14 03:53:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:01,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:53:01,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:02,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:53:04,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-14 03:53:05,751 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 105 treesize of output 78 [2024-11-14 03:53:06,530 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 105 treesize of output 78 [2024-11-14 03:53:07,324 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 105 treesize of output 78 [2024-11-14 03:53:08,190 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 105 treesize of output 78 [2024-11-14 03:53:08,847 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 105 treesize of output 78 [2024-11-14 03:53:10,013 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 144 treesize of output 105 [2024-11-14 03:53:10,614 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 103 treesize of output 54 [2024-11-14 03:53:10,754 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 103 treesize of output 54 [2024-11-14 03:53:10,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 58 [2024-11-14 03:53:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 460 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 03:53:11,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:53:11,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1442580326] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:11,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:53:11,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 16] total 29 [2024-11-14 03:53:11,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052848688] [2024-11-14 03:53:11,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:11,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:53:11,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:53:11,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=806, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:53:11,526 INFO L87 Difference]: Start difference. First operand 2471 states and 3244 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:53:12,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:12,972 INFO L93 Difference]: Finished difference Result 5704 states and 7541 transitions. [2024-11-14 03:53:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:53:12,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:53:12,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:12,981 INFO L225 Difference]: With dead ends: 5704 [2024-11-14 03:53:12,981 INFO L226 Difference]: Without dead ends: 3311 [2024-11-14 03:53:12,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 454 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=129, Invalid=863, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:53:12,984 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 108 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:12,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 431 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 03:53:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2024-11-14 03:53:13,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 2935. [2024-11-14 03:53:13,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2935 states, 2704 states have (on average 1.3113905325443787) internal successors, (3546), 2730 states have internal predecessors, (3546), 152 states have call successors, (152), 78 states have call predecessors, (152), 78 states have return successors, (152), 126 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-14 03:53:13,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 3850 transitions. [2024-11-14 03:53:13,228 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 3850 transitions. Word has length 151 [2024-11-14 03:53:13,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:13,229 INFO L471 AbstractCegarLoop]: Abstraction has 2935 states and 3850 transitions. [2024-11-14 03:53:13,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:53:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 3850 transitions. [2024-11-14 03:53:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:53:13,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:13,233 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:13,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2024-11-14 03:53:13,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (49)] Ended with exit code 0 [2024-11-14 03:53:13,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:53:13,634 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:13,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:13,634 INFO L85 PathProgramCache]: Analyzing trace with hash 462708546, now seen corresponding path program 1 times [2024-11-14 03:53:13,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:13,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245388058] [2024-11-14 03:53:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:13,635 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 03:53:13,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:13,636 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:53:13,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (51)] Waiting until timeout for monitored process [2024-11-14 03:53:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:14,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:53:14,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:16,212 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 69 treesize of output 54 [2024-11-14 03:53:16,812 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 69 treesize of output 54 [2024-11-14 03:53:17,409 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 69 treesize of output 54 [2024-11-14 03:53:17,997 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 69 treesize of output 54 [2024-11-14 03:53:18,493 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 69 treesize of output 54 [2024-11-14 03:53:19,087 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 114 treesize of output 87 [2024-11-14 03:53:19,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:19,376 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 125 treesize of output 56 [2024-11-14 03:53:19,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:19,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:53:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:53:19,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:19,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:19,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245388058] [2024-11-14 03:53:19,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245388058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:19,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1322791630] [2024-11-14 03:53:19,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:19,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:53:19,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:53:19,967 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:53:19,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2024-11-14 03:53:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:22,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:53:22,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:23,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:53:24,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-14 03:53:25,396 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 57 treesize of output 42 [2024-11-14 03:53:26,070 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 57 treesize of output 42 [2024-11-14 03:53:26,630 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 57 treesize of output 42 [2024-11-14 03:53:27,227 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 57 treesize of output 42 [2024-11-14 03:53:27,720 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 57 treesize of output 42 [2024-11-14 03:53:28,369 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 57 treesize of output 42 [2024-11-14 03:53:28,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-14 03:53:28,723 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 70 treesize of output 34 [2024-11-14 03:53:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 144 proven. 320 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-14 03:53:28,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:28,930 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1736 (Array (_ BitVec 32) (_ BitVec 32)))) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) (let ((.cse0 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1736) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) is different from false [2024-11-14 03:53:28,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1322791630] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:28,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7353675] [2024-11-14 03:53:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:28,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:28,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:28,963 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:28,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-14 03:53:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:29,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 03:53:29,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:29,838 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 71 treesize of output 43 [2024-11-14 03:53:30,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:30,286 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 98 treesize of output 43 [2024-11-14 03:53:30,878 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:30,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 133 treesize of output 43 [2024-11-14 03:53:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:53:31,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:33,897 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:53:33,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7353675] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:33,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:53:33,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10, 13] total 38 [2024-11-14 03:53:33,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805400263] [2024-11-14 03:53:33,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:33,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 03:53:33,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:53:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 03:53:33,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1583, Unknown=1, NotChecked=80, Total=1806 [2024-11-14 03:53:33,899 INFO L87 Difference]: Start difference. First operand 2935 states and 3850 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:53:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:40,114 INFO L93 Difference]: Finished difference Result 6646 states and 8754 transitions. [2024-11-14 03:53:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-14 03:53:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-14 03:53:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:40,126 INFO L225 Difference]: With dead ends: 6646 [2024-11-14 03:53:40,126 INFO L226 Difference]: Without dead ends: 3789 [2024-11-14 03:53:40,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 674 GetRequests, 626 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=188, Invalid=2071, Unknown=1, NotChecked=92, Total=2352 [2024-11-14 03:53:40,132 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 179 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:40,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1332 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-14 03:53:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2024-11-14 03:53:40,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 2875. [2024-11-14 03:53:40,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2644 states have (on average 1.3033282904689865) internal successors, (3446), 2670 states have internal predecessors, (3446), 152 states have call successors, (152), 78 states have call predecessors, (152), 78 states have return successors, (152), 126 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-14 03:53:40,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3750 transitions. [2024-11-14 03:53:40,382 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3750 transitions. Word has length 151 [2024-11-14 03:53:40,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:40,383 INFO L471 AbstractCegarLoop]: Abstraction has 2875 states and 3750 transitions. [2024-11-14 03:53:40,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 11 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:53:40,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3750 transitions. [2024-11-14 03:53:40,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:53:40,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:40,387 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:53:40,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (51)] Forceful destruction successful, exit code 0 [2024-11-14 03:53:40,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-14 03:53:40,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2024-11-14 03:53:40,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:53:40,989 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:40,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:40,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1232772401, now seen corresponding path program 1 times [2024-11-14 03:53:40,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:53:40,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628901107] [2024-11-14 03:53:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:40,991 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 03:53:40,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:53:40,993 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:53:40,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (54)] Waiting until timeout for monitored process [2024-11-14 03:53:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:41,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:53:41,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:42,859 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 03:53:43,542 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 69 treesize of output 54 [2024-11-14 03:53:44,011 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 69 treesize of output 54 [2024-11-14 03:53:44,479 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 69 treesize of output 54 [2024-11-14 03:53:44,962 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 69 treesize of output 54 [2024-11-14 03:53:45,330 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 69 treesize of output 54 [2024-11-14 03:53:45,731 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 69 treesize of output 54 [2024-11-14 03:53:46,002 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 131 treesize of output 67 [2024-11-14 03:53:46,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:46,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 166 treesize of output 58 [2024-11-14 03:53:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:53:46,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:47,499 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:53:47,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628901107] [2024-11-14 03:53:47,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628901107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:47,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133775759] [2024-11-14 03:53:47,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:47,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:53:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:53:47,501 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:53:47,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2024-11-14 03:53:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:49,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:53:49,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:51,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:53:51,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-14 03:53:52,907 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 30 treesize of output 21 [2024-11-14 03:53:53,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:53:53,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:53:54,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:53:54,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:53:54,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-14 03:53:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 257 proven. 158 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 03:53:55,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:55,319 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1835 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_1835) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|))))) is different from false [2024-11-14 03:53:55,381 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1834 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1835 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1834) |c_~#float_Array_0~0.base| v_ArrVal_1835) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|))))) is different from false [2024-11-14 03:53:55,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1133775759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:55,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144824915] [2024-11-14 03:53:55,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:55,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:55,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:55,419 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:55,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-14 03:53:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:55,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:53:55,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:57,448 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 27 [2024-11-14 03:53:58,005 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 52 [2024-11-14 03:53:58,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:58,288 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 98 treesize of output 43 [2024-11-14 03:53:58,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:53:58,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 133 treesize of output 43 [2024-11-14 03:53:59,271 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:53:59,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:00,408 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((|v_skolemized_q#valueAsBitvector_319| (_ BitVec 32)) (v_ArrVal_1862 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1862) |c_~#float_Array_0~0.base|) (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_319|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_319|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_319|)))) (or (not (= .cse0 .cse1)) (fp.geq .cse0 .cse1)))) (forall ((|ULTIMATE.start_step_#t~mem4#1| (_ FloatingPoint 8 24))) (not (fp.eq |ULTIMATE.start_step_#t~mem4#1| |c_ULTIMATE.start_step_#t~mem5#1|)))) is different from false [2024-11-14 03:54:00,418 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 170 treesize of output 116 [2024-11-14 03:54:00,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 86 treesize of output 62 [2024-11-14 03:54:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:54:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144824915] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:54:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [13, 14, 13] total 47 [2024-11-14 03:54:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705119289] [2024-11-14 03:54:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:00,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:54:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:54:00,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:54:00,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=2507, Unknown=12, NotChecked=312, Total=3080 [2024-11-14 03:54:00,844 INFO L87 Difference]: Start difference. First operand 2875 states and 3750 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:54:07,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:07,506 INFO L93 Difference]: Finished difference Result 5868 states and 7640 transitions. [2024-11-14 03:54:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:54:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 152 [2024-11-14 03:54:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:07,517 INFO L225 Difference]: With dead ends: 5868 [2024-11-14 03:54:07,517 INFO L226 Difference]: Without dead ends: 3071 [2024-11-14 03:54:07,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 621 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=344, Invalid=3436, Unknown=14, NotChecked=366, Total=4160 [2024-11-14 03:54:07,522 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 334 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 48 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 373 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:07,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1049 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1046 Invalid, 1 Unknown, 373 Unchecked, 4.9s Time] [2024-11-14 03:54:07,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2024-11-14 03:54:07,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2783. [2024-11-14 03:54:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2556 states have (on average 1.306338028169014) internal successors, (3339), 2582 states have internal predecessors, (3339), 148 states have call successors, (148), 78 states have call predecessors, (148), 78 states have return successors, (148), 122 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-14 03:54:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3635 transitions. [2024-11-14 03:54:07,786 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3635 transitions. Word has length 152 [2024-11-14 03:54:07,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:07,786 INFO L471 AbstractCegarLoop]: Abstraction has 2783 states and 3635 transitions. [2024-11-14 03:54:07,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:54:07,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3635 transitions. [2024-11-14 03:54:07,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 03:54:07,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:07,790 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:54:07,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-14 03:54:08,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (54)] Ended with exit code 0 [2024-11-14 03:54:08,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2024-11-14 03:54:08,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:54:08,391 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:54:08,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:08,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1395728422, now seen corresponding path program 1 times [2024-11-14 03:54:08,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:54:08,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142940263] [2024-11-14 03:54:08,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:08,392 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 03:54:08,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:54:08,394 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:54:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (57)] Waiting until timeout for monitored process [2024-11-14 03:54:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:08,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:54:08,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:08,882 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 03:54:08,899 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 17 treesize of output 9 [2024-11-14 03:54:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:54:08,915 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:54:08,915 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:54:08,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142940263] [2024-11-14 03:54:08,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142940263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:54:08,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:54:08,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:54:08,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128799659] [2024-11-14 03:54:08,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:54:08,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:54:08,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:54:08,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:54:08,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:54:08,917 INFO L87 Difference]: Start difference. First operand 2783 states and 3635 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:54:09,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:54:09,746 INFO L93 Difference]: Finished difference Result 5532 states and 7240 transitions. [2024-11-14 03:54:09,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:54:09,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-14 03:54:09,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:54:09,757 INFO L225 Difference]: With dead ends: 5532 [2024-11-14 03:54:09,757 INFO L226 Difference]: Without dead ends: 2835 [2024-11-14 03:54:09,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 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 03:54:09,762 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 33 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:54:09,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 578 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:54:09,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2024-11-14 03:54:10,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 2795. [2024-11-14 03:54:10,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2568 states have (on average 1.3049065420560748) internal successors, (3351), 2594 states have internal predecessors, (3351), 148 states have call successors, (148), 78 states have call predecessors, (148), 78 states have return successors, (148), 122 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-14 03:54:10,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3647 transitions. [2024-11-14 03:54:10,164 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3647 transitions. Word has length 153 [2024-11-14 03:54:10,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:54:10,165 INFO L471 AbstractCegarLoop]: Abstraction has 2795 states and 3647 transitions. [2024-11-14 03:54:10,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:54:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3647 transitions. [2024-11-14 03:54:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 03:54:10,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:54:10,169 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:54:10,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (57)] Ended with exit code 0 [2024-11-14 03:54:10,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:54:10,370 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:54:10,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:54:10,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1418360676, now seen corresponding path program 1 times [2024-11-14 03:54:10,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:54:10,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283058142] [2024-11-14 03:54:10,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:10,373 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 03:54:10,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:54:10,375 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:54:10,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (58)] Waiting until timeout for monitored process [2024-11-14 03:54:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:11,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:54:11,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:11,478 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 03:54:12,447 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 47 treesize of output 34 [2024-11-14 03:54:13,101 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 51 treesize of output 40 [2024-11-14 03:54:13,526 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 51 treesize of output 40 [2024-11-14 03:54:13,961 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 51 treesize of output 40 [2024-11-14 03:54:14,441 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 51 treesize of output 40 [2024-11-14 03:54:14,964 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 51 treesize of output 40 [2024-11-14 03:54:15,447 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 51 treesize of output 40 [2024-11-14 03:54:15,816 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 51 treesize of output 40 [2024-11-14 03:54:16,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:54:16,418 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 03:54:16,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:54:16,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 17 [2024-11-14 03:54:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 50 proven. 478 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:54:16,612 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:16,904 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1928 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1928) |c_~#BOOL_unsigned_char_Array_0~0.base|) (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|))) (_ bv0 8)))) is different from false [2024-11-14 03:54:16,920 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:54:16,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283058142] [2024-11-14 03:54:16,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283058142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:16,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1021226766] [2024-11-14 03:54:16,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:16,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:54:16,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:54:16,922 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:54:16,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2024-11-14 03:54:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:19,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:54:19,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:19,711 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 03:54:21,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-14 03:54:22,142 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 35 treesize of output 26 [2024-11-14 03:54:22,563 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 35 treesize of output 26 [2024-11-14 03:54:23,048 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 35 treesize of output 26 [2024-11-14 03:54:23,464 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 35 treesize of output 26 [2024-11-14 03:54:23,919 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 35 treesize of output 26 [2024-11-14 03:54:24,425 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 35 treesize of output 26 [2024-11-14 03:54:24,795 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 35 treesize of output 26 [2024-11-14 03:54:25,494 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 39 treesize of output 30 [2024-11-14 03:54:25,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 23 [2024-11-14 03:54:25,671 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 50 proven. 478 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:54:25,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:25,757 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1965 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| |c_~#unsigned_short_int_Array_0~0.base| v_ArrVal_1965) |c_~#BOOL_unsigned_char_Array_0~0.base|) (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))))) is different from false [2024-11-14 03:54:25,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1021226766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:25,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447252383] [2024-11-14 03:54:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:54:25,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:54:25,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:54:25,774 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:54:25,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-14 03:54:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:54:26,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:54:26,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:54:28,672 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 68 treesize of output 32 [2024-11-14 03:54:29,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-14 03:54:29,889 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 57 treesize of output 42 [2024-11-14 03:54:30,517 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 57 treesize of output 42 [2024-11-14 03:54:31,119 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 57 treesize of output 42 [2024-11-14 03:54:31,769 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 57 treesize of output 42 [2024-11-14 03:54:32,911 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 57 treesize of output 42 [2024-11-14 03:54:33,399 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 57 treesize of output 42 [2024-11-14 03:54:33,753 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 68 treesize of output 32 [2024-11-14 03:54:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 240 proven. 128 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-14 03:54:34,068 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:54:35,479 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2000 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1999 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (select (select (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_1999) |c_~#unsigned_long_int_Array_0~0.base| v_ArrVal_2000) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (or (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0)))) is different from false [2024-11-14 03:54:35,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447252383] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:54:35,655 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:54:35,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 10] total 41 [2024-11-14 03:54:35,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59415265] [2024-11-14 03:54:35,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:54:35,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-14 03:54:35,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:54:35,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-14 03:54:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=2270, Unknown=36, NotChecked=300, Total=2862 [2024-11-14 03:54:35,659 INFO L87 Difference]: Start difference. First operand 2795 states and 3647 transitions. Second operand has 42 states, 38 states have (on average 4.842105263157895) internal successors, (184), 36 states have internal predecessors, (184), 16 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 15 states have call predecessors, (52), 16 states have call successors, (52) [2024-11-14 03:55:01,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:01,668 INFO L93 Difference]: Finished difference Result 5777 states and 7503 transitions. [2024-11-14 03:55:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 03:55:01,669 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 38 states have (on average 4.842105263157895) internal successors, (184), 36 states have internal predecessors, (184), 16 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 15 states have call predecessors, (52), 16 states have call successors, (52) Word has length 153 [2024-11-14 03:55:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:01,677 INFO L225 Difference]: With dead ends: 5777 [2024-11-14 03:55:01,678 INFO L226 Difference]: Without dead ends: 3068 [2024-11-14 03:55:01,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2036 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=1231, Invalid=6400, Unknown=37, NotChecked=522, Total=8190 [2024-11-14 03:55:01,683 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 1215 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 3019 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 3019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:01,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1021 Invalid, 3377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 3019 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2024-11-14 03:55:01,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2024-11-14 03:55:02,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 1630. [2024-11-14 03:55:02,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1461 states have (on average 1.2751540041067762) internal successors, (1863), 1473 states have internal predecessors, (1863), 104 states have call successors, (104), 64 states have call predecessors, (104), 64 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 03:55:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2071 transitions. [2024-11-14 03:55:02,036 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2071 transitions. Word has length 153 [2024-11-14 03:55:02,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:02,037 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2071 transitions. [2024-11-14 03:55:02,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 38 states have (on average 4.842105263157895) internal successors, (184), 36 states have internal predecessors, (184), 16 states have call successors, (52), 16 states have call predecessors, (52), 16 states have return successors, (52), 15 states have call predecessors, (52), 16 states have call successors, (52) [2024-11-14 03:55:02,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2071 transitions. [2024-11-14 03:55:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 03:55:02,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:02,040 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:02,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-14 03:55:02,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (58)] Ended with exit code 0 [2024-11-14 03:55:02,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2024-11-14 03:55:02,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:55:02,642 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:02,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:02,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1005728136, now seen corresponding path program 1 times [2024-11-14 03:55:02,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:55:02,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417577468] [2024-11-14 03:55:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:02,644 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 03:55:02,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:55:02,646 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:02,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (61)] Waiting until timeout for monitored process [2024-11-14 03:55:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:03,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:55:03,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:05,586 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 69 treesize of output 54 [2024-11-14 03:55:06,087 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 69 treesize of output 54 [2024-11-14 03:55:06,578 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 69 treesize of output 54 [2024-11-14 03:55:07,104 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 69 treesize of output 54 [2024-11-14 03:55:07,547 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 69 treesize of output 54 [2024-11-14 03:55:08,028 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 69 treesize of output 54 [2024-11-14 03:55:08,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:08,468 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 146 treesize of output 83 [2024-11-14 03:55:08,832 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:08,833 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 146 treesize of output 74 [2024-11-14 03:55:09,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:09,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 82 [2024-11-14 03:55:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:55:09,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:55:11,124 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:55:11,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417577468] [2024-11-14 03:55:11,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417577468] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:11,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:55:11,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 23 [2024-11-14 03:55:11,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095153557] [2024-11-14 03:55:11,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:11,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:55:11,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:55:11,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:55:11,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:55:11,125 INFO L87 Difference]: Start difference. First operand 1630 states and 2071 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:55:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:15,073 INFO L93 Difference]: Finished difference Result 3392 states and 4337 transitions. [2024-11-14 03:55:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:55:15,074 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 153 [2024-11-14 03:55:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:15,082 INFO L225 Difference]: With dead ends: 3392 [2024-11-14 03:55:15,083 INFO L226 Difference]: Without dead ends: 1848 [2024-11-14 03:55:15,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:55:15,086 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 59 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:15,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1146 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-14 03:55:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2024-11-14 03:55:15,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1630. [2024-11-14 03:55:15,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1461 states have (on average 1.2751540041067762) internal successors, (1863), 1473 states have internal predecessors, (1863), 104 states have call successors, (104), 64 states have call predecessors, (104), 64 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 03:55:15,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2071 transitions. [2024-11-14 03:55:15,427 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2071 transitions. Word has length 153 [2024-11-14 03:55:15,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:15,428 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2071 transitions. [2024-11-14 03:55:15,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:55:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2071 transitions. [2024-11-14 03:55:15,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-14 03:55:15,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:15,431 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:15,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (61)] Ended with exit code 0 [2024-11-14 03:55:15,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:15,631 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:15,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:15,632 INFO L85 PathProgramCache]: Analyzing trace with hash 385547510, now seen corresponding path program 1 times [2024-11-14 03:55:15,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:55:15,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146064166] [2024-11-14 03:55:15,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:15,633 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 03:55:15,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:55:15,635 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:15,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (62)] Waiting until timeout for monitored process [2024-11-14 03:55:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:16,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:55:16,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-14 03:55:16,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:55:16,219 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:55:16,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146064166] [2024-11-14 03:55:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146064166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:55:16,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:55:16,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:55:16,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468394836] [2024-11-14 03:55:16,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:16,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:55:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:55:16,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:55:16,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:55:16,221 INFO L87 Difference]: Start difference. First operand 1630 states and 2071 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:55:16,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:16,482 INFO L93 Difference]: Finished difference Result 3197 states and 4069 transitions. [2024-11-14 03:55:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:55:16,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2024-11-14 03:55:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:16,489 INFO L225 Difference]: With dead ends: 3197 [2024-11-14 03:55:16,489 INFO L226 Difference]: Without dead ends: 1630 [2024-11-14 03:55:16,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:55:16,492 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:16,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 499 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:55:16,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-14 03:55:16,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1630. [2024-11-14 03:55:16,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1461 states have (on average 1.272416153319644) internal successors, (1859), 1473 states have internal predecessors, (1859), 104 states have call successors, (104), 64 states have call predecessors, (104), 64 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 03:55:16,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2067 transitions. [2024-11-14 03:55:16,719 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2067 transitions. Word has length 153 [2024-11-14 03:55:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:16,719 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2067 transitions. [2024-11-14 03:55:16,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:55:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2067 transitions. [2024-11-14 03:55:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 03:55:16,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:16,723 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:16,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (62)] Ended with exit code 0 [2024-11-14 03:55:16,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:16,924 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:16,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:16,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1408602619, now seen corresponding path program 1 times [2024-11-14 03:55:16,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:55:16,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42402738] [2024-11-14 03:55:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:16,925 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 03:55:16,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:55:16,928 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:16,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (63)] Waiting until timeout for monitored process [2024-11-14 03:55:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:17,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-14 03:55:17,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:18,963 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 03:55:19,946 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 69 treesize of output 54 [2024-11-14 03:55:20,745 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 69 treesize of output 54 [2024-11-14 03:55:21,490 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 69 treesize of output 54 [2024-11-14 03:55:22,176 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 69 treesize of output 54 [2024-11-14 03:55:22,716 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 69 treesize of output 54 [2024-11-14 03:55:23,407 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 69 treesize of output 54 [2024-11-14 03:55:23,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:23,929 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 170 treesize of output 89 [2024-11-14 03:55:24,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:24,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 73 [2024-11-14 03:55:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:55:24,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:55:26,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:55:26,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42402738] [2024-11-14 03:55:26,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42402738] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:26,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:55:26,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2024-11-14 03:55:26,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333692300] [2024-11-14 03:55:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:26,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:55:26,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:55:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:55:26,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2024-11-14 03:55:26,031 INFO L87 Difference]: Start difference. First operand 1630 states and 2067 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:55:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:29,936 INFO L93 Difference]: Finished difference Result 3374 states and 4312 transitions. [2024-11-14 03:55:29,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:55:29,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-14 03:55:29,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:29,946 INFO L225 Difference]: With dead ends: 3374 [2024-11-14 03:55:29,946 INFO L226 Difference]: Without dead ends: 1830 [2024-11-14 03:55:29,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-14 03:55:29,950 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 69 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:29,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 836 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-14 03:55:29,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-14 03:55:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1636. [2024-11-14 03:55:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1467 states have (on average 1.2644853442399455) internal successors, (1855), 1479 states have internal predecessors, (1855), 104 states have call successors, (104), 64 states have call predecessors, (104), 64 states have return successors, (104), 92 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 03:55:30,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2063 transitions. [2024-11-14 03:55:30,307 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2063 transitions. Word has length 154 [2024-11-14 03:55:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:30,308 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2063 transitions. [2024-11-14 03:55:30,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:55:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2063 transitions. [2024-11-14 03:55:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 03:55:30,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:30,312 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:55:30,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (63)] Ended with exit code 0 [2024-11-14 03:55:30,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:30,512 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:30,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:30,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1470642233, now seen corresponding path program 1 times [2024-11-14 03:55:30,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:55:30,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1821736760] [2024-11-14 03:55:30,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:30,513 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 03:55:30,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:55:30,515 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:55:30,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (64)] Waiting until timeout for monitored process [2024-11-14 03:55:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:31,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-14 03:55:31,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:32,543 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 03:55:33,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2024-11-14 03:55:34,082 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 69 treesize of output 54 [2024-11-14 03:55:34,708 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 69 treesize of output 54 [2024-11-14 03:55:35,290 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 69 treesize of output 54 [2024-11-14 03:55:35,825 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 69 treesize of output 54 [2024-11-14 03:55:36,516 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 69 treesize of output 54 [2024-11-14 03:55:36,878 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 131 treesize of output 67 [2024-11-14 03:55:37,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:37,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 196 treesize of output 70 [2024-11-14 03:55:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:55:37,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:39,730 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:55:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1821736760] [2024-11-14 03:55:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1821736760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1207339328] [2024-11-14 03:55:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:39,731 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:55:39,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:55:39,733 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:55:39,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2024-11-14 03:55:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:42,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:55:42,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:43,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:55:44,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-14 03:55:45,991 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 30 treesize of output 21 [2024-11-14 03:55:46,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:55:46,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:55:47,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:55:47,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-14 03:55:48,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-14 03:55:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 257 proven. 158 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-14 03:55:48,338 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:49,130 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2167 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2168 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2167) |c_~#float_Array_0~0.base| v_ArrVal_2168) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|))))) is different from false [2024-11-14 03:55:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1207339328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228350299] [2024-11-14 03:55:49,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:49,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:49,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:49,180 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:49,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-14 03:55:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:49,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-14 03:55:49,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:50,085 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 18 treesize of output 13 [2024-11-14 03:55:50,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-14 03:55:50,889 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 18 treesize of output 13 [2024-11-14 03:55:51,266 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 18 treesize of output 13 [2024-11-14 03:55:51,541 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 18 treesize of output 13 [2024-11-14 03:55:51,797 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 13 [2024-11-14 03:55:53,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2024-11-14 03:55:55,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:55:55,829 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 54 treesize of output 38 [2024-11-14 03:55:56,470 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 43 treesize of output 32 [2024-11-14 03:55:57,099 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 43 treesize of output 32 [2024-11-14 03:55:58,136 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 43 treesize of output 32 [2024-11-14 03:55:58,654 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 43 treesize of output 32 [2024-11-14 03:55:59,154 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 57 treesize of output 42 [2024-11-14 03:55:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 267 proven. 164 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-14 03:55:59,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:56:01,286 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2209 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2207 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2207))) (or (let ((.cse0 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_2209) |c_~#unsigned_long_int_Array_0~0.base|))) (bvuge (select .cse0 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse0 (bvadd (_ bv12 32) |c_~#unsigned_long_int_Array_0~0.offset|)))) (let ((.cse2 (select (store .cse1 |c_~#float_Array_0~0.base| v_ArrVal_2208) |c_~#unsigned_long_int_Array_0~0.base|))) (bvule (select .cse2 |c_~#unsigned_long_int_Array_0~0.offset|) (select .cse2 (bvadd (_ bv8 32) |c_~#unsigned_long_int_Array_0~0.offset|))))))) is different from false [2024-11-14 03:56:01,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228350299] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:56:01,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:56:01,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 17] total 44 [2024-11-14 03:56:01,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647124601] [2024-11-14 03:56:01,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:56:01,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-14 03:56:01,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:56:01,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-14 03:56:01,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=3311, Unknown=80, NotChecked=238, Total=3906 [2024-11-14 03:56:01,390 INFO L87 Difference]: Start difference. First operand 1636 states and 2063 transitions. Second operand has 45 states, 40 states have (on average 5.025) internal successors, (201), 41 states have internal predecessors, (201), 15 states have call successors, (54), 13 states have call predecessors, (54), 15 states have return successors, (54), 13 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:56:38,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:43,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:56:51,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:51,836 INFO L93 Difference]: Finished difference Result 5033 states and 6292 transitions. [2024-11-14 03:56:51,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-11-14 03:56:51,838 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 40 states have (on average 5.025) internal successors, (201), 41 states have internal predecessors, (201), 15 states have call successors, (54), 13 states have call predecessors, (54), 15 states have return successors, (54), 13 states have call predecessors, (54), 15 states have call successors, (54) Word has length 154 [2024-11-14 03:56:51,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:51,850 INFO L225 Difference]: With dead ends: 5033 [2024-11-14 03:56:51,850 INFO L226 Difference]: Without dead ends: 3483 [2024-11-14 03:56:51,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 8163 ImplicationChecksByTransitivity, 36.5s TimeCoverageRelationStatistics Valid=3197, Invalid=23074, Unknown=143, NotChecked=646, Total=27060 [2024-11-14 03:56:51,857 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 2963 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 5408 mSolverCounterSat, 858 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2963 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 6268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 5408 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:51,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2963 Valid, 2120 Invalid, 6268 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [858 Valid, 5408 Invalid, 2 Unknown, 0 Unchecked, 24.7s Time] [2024-11-14 03:56:51,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2024-11-14 03:56:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 2868. [2024-11-14 03:56:52,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2868 states, 2531 states have (on average 1.2311339391544844) internal successors, (3116), 2554 states have internal predecessors, (3116), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:56:52,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 3536 transitions. [2024-11-14 03:56:52,493 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 3536 transitions. Word has length 154 [2024-11-14 03:56:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:52,493 INFO L471 AbstractCegarLoop]: Abstraction has 2868 states and 3536 transitions. [2024-11-14 03:56:52,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 40 states have (on average 5.025) internal successors, (201), 41 states have internal predecessors, (201), 15 states have call successors, (54), 13 states have call predecessors, (54), 15 states have return successors, (54), 13 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:56:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 3536 transitions. [2024-11-14 03:56:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-14 03:56:52,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:52,495 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:52,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2024-11-14 03:56:52,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2024-11-14 03:56:52,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (64)] Forceful destruction successful, exit code 0 [2024-11-14 03:56:53,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:56:53,096 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:56:53,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:53,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1170992505, now seen corresponding path program 1 times [2024-11-14 03:56:53,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:56:53,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476991137] [2024-11-14 03:56:53,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:53,097 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 03:56:53,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:56:53,099 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:56:53,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (67)] Waiting until timeout for monitored process [2024-11-14 03:56:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:53,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:56:53,627 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:53,648 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2024-11-14 03:56:53,648 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:56:53,648 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:56:53,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476991137] [2024-11-14 03:56:53,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476991137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:56:53,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:56:53,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:56:53,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477355238] [2024-11-14 03:56:53,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:56:53,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:56:53,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:56:53,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:56:53,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:53,650 INFO L87 Difference]: Start difference. First operand 2868 states and 3536 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:56:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:56:54,127 INFO L93 Difference]: Finished difference Result 5660 states and 6983 transitions. [2024-11-14 03:56:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:56:54,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-14 03:56:54,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:56:54,135 INFO L225 Difference]: With dead ends: 5660 [2024-11-14 03:56:54,135 INFO L226 Difference]: Without dead ends: 2868 [2024-11-14 03:56:54,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:56:54,138 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:56:54,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 496 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:56:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2868 states. [2024-11-14 03:56:54,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2868 to 2868. [2024-11-14 03:56:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2868 states, 2531 states have (on average 1.228763334650336) internal successors, (3110), 2554 states have internal predecessors, (3110), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:56:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 3530 transitions. [2024-11-14 03:56:54,531 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 3530 transitions. Word has length 154 [2024-11-14 03:56:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:56:54,531 INFO L471 AbstractCegarLoop]: Abstraction has 2868 states and 3530 transitions. [2024-11-14 03:56:54,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-14 03:56:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 3530 transitions. [2024-11-14 03:56:54,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 03:56:54,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:56:54,533 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:56:54,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (67)] Ended with exit code 0 [2024-11-14 03:56:54,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:56:54,733 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:56:54,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:56:54,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1741154593, now seen corresponding path program 1 times [2024-11-14 03:56:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:56:54,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828148958] [2024-11-14 03:56:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:56:54,734 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 03:56:54,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:56:54,736 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:56:54,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (68)] Waiting until timeout for monitored process [2024-11-14 03:56:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:56:55,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:56:55,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:56:56,448 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 03:56:57,315 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 69 treesize of output 54 [2024-11-14 03:56:57,914 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 69 treesize of output 54 [2024-11-14 03:56:58,546 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 69 treesize of output 54 [2024-11-14 03:56:59,114 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 69 treesize of output 54 [2024-11-14 03:56:59,652 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 69 treesize of output 54 [2024-11-14 03:57:00,237 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 69 treesize of output 54 [2024-11-14 03:57:00,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 34 [2024-11-14 03:57:00,518 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 88 treesize of output 34 [2024-11-14 03:57:00,908 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:57:00,908 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:01,643 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2267 (Array (_ BitVec 32) (_ BitVec 32)))) (not (fp.geq (let ((.cse0 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2267) |c_~#float_Array_0~0.base|) (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0))))) is different from false [2024-11-14 03:57:01,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:57:01,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [828148958] [2024-11-14 03:57:01,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [828148958] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:01,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1770823879] [2024-11-14 03:57:01,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:01,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:57:01,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:57:01,710 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:57:01,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2024-11-14 03:57:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:03,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 03:57:03,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:05,366 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 03:57:05,870 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 69 treesize of output 54 [2024-11-14 03:57:06,490 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 69 treesize of output 54 [2024-11-14 03:57:07,102 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 69 treesize of output 54 [2024-11-14 03:57:07,635 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 69 treesize of output 54 [2024-11-14 03:57:08,213 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 69 treesize of output 54 [2024-11-14 03:57:08,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2024-11-14 03:57:09,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:09,322 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 170 treesize of output 89 [2024-11-14 03:57:10,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:10,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 64 [2024-11-14 03:57:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:57:10,311 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:12,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1770823879] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:12,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860420835] [2024-11-14 03:57:12,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:12,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:12,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:12,631 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:12,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-14 03:57:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:22,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:57:22,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:23,729 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 86 treesize of output 50 [2024-11-14 03:57:24,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:24,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 140 treesize of output 56 [2024-11-14 03:57:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:57:24,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:57:24,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860420835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:24,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:57:24,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 14] total 24 [2024-11-14 03:57:24,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539858254] [2024-11-14 03:57:24,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:24,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:57:24,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:57:24,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:57:24,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1102, Unknown=10, NotChecked=68, Total=1332 [2024-11-14 03:57:24,912 INFO L87 Difference]: Start difference. First operand 2868 states and 3530 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:57:29,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:29,959 INFO L93 Difference]: Finished difference Result 5849 states and 7245 transitions. [2024-11-14 03:57:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:57:29,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-14 03:57:29,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:29,968 INFO L225 Difference]: With dead ends: 5849 [2024-11-14 03:57:29,968 INFO L226 Difference]: Without dead ends: 3067 [2024-11-14 03:57:29,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 501 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=152, Invalid=1102, Unknown=10, NotChecked=68, Total=1332 [2024-11-14 03:57:29,973 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 154 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:29,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 517 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-14 03:57:29,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3067 states. [2024-11-14 03:57:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3067 to 2794. [2024-11-14 03:57:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2457 states have (on average 1.2218152218152218) internal successors, (3002), 2480 states have internal predecessors, (3002), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:57:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3422 transitions. [2024-11-14 03:57:30,513 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3422 transitions. Word has length 155 [2024-11-14 03:57:30,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:30,514 INFO L471 AbstractCegarLoop]: Abstraction has 2794 states and 3422 transitions. [2024-11-14 03:57:30,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:57:30,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3422 transitions. [2024-11-14 03:57:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 03:57:30,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:30,518 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:30,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2024-11-14 03:57:30,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2024-11-14 03:57:30,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (68)] Forceful destruction successful, exit code 0 [2024-11-14 03:57:31,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:57:31,119 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:57:31,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:31,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1565855378, now seen corresponding path program 1 times [2024-11-14 03:57:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:57:31,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991654112] [2024-11-14 03:57:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:31,121 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 03:57:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:57:31,124 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:57:31,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (71)] Waiting until timeout for monitored process [2024-11-14 03:57:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:31,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:57:31,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:32,984 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 03:57:33,928 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 69 treesize of output 54 [2024-11-14 03:57:34,544 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 69 treesize of output 54 [2024-11-14 03:57:35,082 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 69 treesize of output 54 [2024-11-14 03:57:35,566 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 69 treesize of output 54 [2024-11-14 03:57:36,029 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 69 treesize of output 54 [2024-11-14 03:57:36,716 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 69 treesize of output 54 [2024-11-14 03:57:37,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:37,260 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 125 treesize of output 56 [2024-11-14 03:57:37,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:37,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 127 treesize of output 49 [2024-11-14 03:57:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 03:57:37,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:38,118 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2362 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2362) |c_~#float_Array_0~0.base|))) (let ((.cse0 (let ((.cse3 (select .cse2 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0) (not (fp.lt .cse0 (let ((.cse1 (select .cse2 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))))))) is different from false [2024-11-14 03:57:38,237 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:57:38,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991654112] [2024-11-14 03:57:38,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991654112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:38,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [957279077] [2024-11-14 03:57:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:38,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:57:38,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:57:38,240 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:57:38,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2024-11-14 03:57:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:40,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 03:57:40,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:42,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:57:44,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-11-14 03:57:45,792 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 103 treesize of output 76 [2024-11-14 03:57:46,545 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 103 treesize of output 76 [2024-11-14 03:57:47,329 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 103 treesize of output 76 [2024-11-14 03:57:48,263 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 103 treesize of output 76 [2024-11-14 03:57:49,057 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 103 treesize of output 76 [2024-11-14 03:57:50,135 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 103 treesize of output 76 [2024-11-14 03:57:50,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 65 [2024-11-14 03:57:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 460 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 03:57:50,765 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:57:51,216 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2399 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse1 (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2399) |c_~#float_Array_0~0.base|))) (fp.lt (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select .cse1 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))))) is different from false [2024-11-14 03:57:51,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [957279077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:57:51,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269432832] [2024-11-14 03:57:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:51,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:57:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:57:51,277 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:57:51,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-14 03:57:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:51,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:57:51,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:57:52,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:52,683 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 32 [2024-11-14 03:57:53,158 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:53,158 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 89 treesize of output 44 [2024-11-14 03:57:53,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:57:53,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 118 treesize of output 46 [2024-11-14 03:57:53,554 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:57:53,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:57:53,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269432832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:53,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:57:53,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12, 17] total 34 [2024-11-14 03:57:53,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847144435] [2024-11-14 03:57:53,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:53,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:57:53,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:57:53,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:57:53,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1470, Unknown=2, NotChecked=158, Total=1806 [2024-11-14 03:57:53,556 INFO L87 Difference]: Start difference. First operand 2794 states and 3422 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:57:57,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:57:57,340 INFO L93 Difference]: Finished difference Result 5921 states and 7328 transitions. [2024-11-14 03:57:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:57:57,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-14 03:57:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:57:57,347 INFO L225 Difference]: With dead ends: 5921 [2024-11-14 03:57:57,347 INFO L226 Difference]: Without dead ends: 3213 [2024-11-14 03:57:57,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 492 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=188, Invalid=1624, Unknown=2, NotChecked=166, Total=1980 [2024-11-14 03:57:57,351 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 201 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:57:57,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 686 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-14 03:57:57,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3213 states. [2024-11-14 03:57:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3213 to 2790. [2024-11-14 03:57:57,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2790 states, 2453 states have (on average 1.2193232776192418) internal successors, (2991), 2476 states have internal predecessors, (2991), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:57:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2790 states to 2790 states and 3411 transitions. [2024-11-14 03:57:57,844 INFO L78 Accepts]: Start accepts. Automaton has 2790 states and 3411 transitions. Word has length 155 [2024-11-14 03:57:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:57:57,844 INFO L471 AbstractCegarLoop]: Abstraction has 2790 states and 3411 transitions. [2024-11-14 03:57:57,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:57:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 2790 states and 3411 transitions. [2024-11-14 03:57:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 03:57:57,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:57:57,846 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:57:57,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2024-11-14 03:57:58,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2024-11-14 03:57:58,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (71)] Ended with exit code 0 [2024-11-14 03:57:58,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:57:58,447 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:57:58,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:57:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash 427609005, now seen corresponding path program 1 times [2024-11-14 03:57:58,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:57:58,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476316680] [2024-11-14 03:57:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:57:58,448 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 03:57:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:57:58,450 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:57:58,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (74)] Waiting until timeout for monitored process [2024-11-14 03:57:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:57:59,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 03:57:59,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:00,081 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 67 treesize of output 31 [2024-11-14 03:58:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:58:00,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:00,247 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:00,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476316680] [2024-11-14 03:58:00,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476316680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:00,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:00,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:58:00,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523788816] [2024-11-14 03:58:00,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:00,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:58:00,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:00,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:58:00,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:58:00,249 INFO L87 Difference]: Start difference. First operand 2790 states and 3411 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:58:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:06,702 INFO L93 Difference]: Finished difference Result 5613 states and 6896 transitions. [2024-11-14 03:58:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:58:06,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-11-14 03:58:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:06,708 INFO L225 Difference]: With dead ends: 5613 [2024-11-14 03:58:06,709 INFO L226 Difference]: Without dead ends: 2909 [2024-11-14 03:58:06,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:58:06,712 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 121 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:06,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 431 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-14 03:58:06,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2024-11-14 03:58:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 2815. [2024-11-14 03:58:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2478 states have (on average 1.2171105730427765) internal successors, (3016), 2501 states have internal predecessors, (3016), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:58:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3436 transitions. [2024-11-14 03:58:07,254 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3436 transitions. Word has length 156 [2024-11-14 03:58:07,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:07,255 INFO L471 AbstractCegarLoop]: Abstraction has 2815 states and 3436 transitions. [2024-11-14 03:58:07,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:58:07,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3436 transitions. [2024-11-14 03:58:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 03:58:07,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:07,259 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:07,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (74)] Ended with exit code 0 [2024-11-14 03:58:07,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:58:07,460 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:58:07,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:07,460 INFO L85 PathProgramCache]: Analyzing trace with hash -273455573, now seen corresponding path program 1 times [2024-11-14 03:58:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:07,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331719036] [2024-11-14 03:58:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:07,461 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 03:58:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:07,463 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:58:07,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (75)] Waiting until timeout for monitored process [2024-11-14 03:58:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:08,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:58:08,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:08,214 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 03:58:08,252 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 52 [2024-11-14 03:58:08,653 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:58:08,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 218 treesize of output 74 [2024-11-14 03:58:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 03:58:08,751 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:58:08,751 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:08,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331719036] [2024-11-14 03:58:08,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331719036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:08,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:08,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-14 03:58:08,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219511622] [2024-11-14 03:58:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:08,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:58:08,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:08,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:58:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:58:08,752 INFO L87 Difference]: Start difference. First operand 2815 states and 3436 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:58:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:11,351 INFO L93 Difference]: Finished difference Result 6235 states and 7637 transitions. [2024-11-14 03:58:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:58:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 156 [2024-11-14 03:58:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:11,359 INFO L225 Difference]: With dead ends: 6235 [2024-11-14 03:58:11,359 INFO L226 Difference]: Without dead ends: 3506 [2024-11-14 03:58:11,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:58:11,362 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 49 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:11,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 827 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-14 03:58:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3506 states. [2024-11-14 03:58:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3506 to 3270. [2024-11-14 03:58:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 2933 states have (on average 1.2055915444936924) internal successors, (3536), 2956 states have internal predecessors, (3536), 210 states have call successors, (210), 126 states have call predecessors, (210), 126 states have return successors, (210), 187 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-14 03:58:12,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 3956 transitions. [2024-11-14 03:58:12,115 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 3956 transitions. Word has length 156 [2024-11-14 03:58:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:12,116 INFO L471 AbstractCegarLoop]: Abstraction has 3270 states and 3956 transitions. [2024-11-14 03:58:12,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 03:58:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 3956 transitions. [2024-11-14 03:58:12,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 03:58:12,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:12,120 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:12,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (75)] Ended with exit code 0 [2024-11-14 03:58:12,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:58:12,321 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:58:12,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash -112990955, now seen corresponding path program 1 times [2024-11-14 03:58:12,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:58:12,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636218640] [2024-11-14 03:58:12,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:12,322 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:58:12,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:58:12,324 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:58:12,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (76)] Waiting until timeout for monitored process [2024-11-14 03:58:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:13,038 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 03:58:13,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:14,231 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 03:58:15,305 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 67 treesize of output 52 [2024-11-14 03:58:15,922 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 67 treesize of output 52 [2024-11-14 03:58:16,527 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 67 treesize of output 52 [2024-11-14 03:58:17,131 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 67 treesize of output 52 [2024-11-14 03:58:17,653 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 67 treesize of output 52 [2024-11-14 03:58:18,310 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 67 treesize of output 52 [2024-11-14 03:58:18,666 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 65 [2024-11-14 03:58:19,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:58:19,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 194 treesize of output 68 [2024-11-14 03:58:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 144 proven. 332 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-14 03:58:19,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:21,163 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_442| (_ BitVec 32)) (v_ArrVal_2516 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse2 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2516) |c_~#float_Array_0~0.base|) (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))) (.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_442|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_442|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_442|)))) (or (not (= .cse0 .cse1)) (fp.geq .cse0 .cse1)))) is different from false [2024-11-14 03:58:21,249 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:58:21,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636218640] [2024-11-14 03:58:21,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636218640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:21,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [273239143] [2024-11-14 03:58:21,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:21,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:58:21,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:58:21,251 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:58:21,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2024-11-14 03:58:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:23,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-14 03:58:23,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:25,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:58:26,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 32 [2024-11-14 03:58:29,632 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 103 treesize of output 76 [2024-11-14 03:58:30,546 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 103 treesize of output 76 [2024-11-14 03:58:31,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 76 [2024-11-14 03:58:32,344 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 103 treesize of output 76 [2024-11-14 03:58:33,068 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 103 treesize of output 76 [2024-11-14 03:58:34,175 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 103 treesize of output 76 [2024-11-14 03:58:34,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 65 [2024-11-14 03:58:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 28 proven. 472 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:58:34,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:35,538 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2550 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2550) |c_~#float_Array_0~0.base|))) (fp.lt (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select .cse1 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-14 03:58:35,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [273239143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:35,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181668199] [2024-11-14 03:58:35,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:35,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:35,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:35,601 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:35,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-14 03:58:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:36,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:58:36,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:37,740 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 03:58:41,186 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 67 treesize of output 52 [2024-11-14 03:58:42,386 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 67 treesize of output 52 [2024-11-14 03:58:42,899 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 67 treesize of output 52 [2024-11-14 03:58:43,616 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 67 treesize of output 52 [2024-11-14 03:58:43,964 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 67 treesize of output 52 [2024-11-14 03:58:44,617 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 67 treesize of output 52 [2024-11-14 03:58:45,399 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 65 [2024-11-14 03:58:46,639 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 7 proven. 478 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-14 03:58:46,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181668199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:51,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:58:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 20] total 52 [2024-11-14 03:58:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572227107] [2024-11-14 03:58:51,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:58:51,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-14 03:58:51,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:58:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-14 03:58:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=407, Invalid=4802, Unknown=55, NotChecked=286, Total=5550 [2024-11-14 03:58:51,392 INFO L87 Difference]: Start difference. First operand 3270 states and 3956 transitions. Second operand has 53 states, 50 states have (on average 3.88) internal successors, (194), 49 states have internal predecessors, (194), 15 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (47), 12 states have call predecessors, (47), 15 states have call successors, (47) [2024-11-14 03:59:30,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:43,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:45,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:59:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:53,783 INFO L93 Difference]: Finished difference Result 12045 states and 14533 transitions. [2024-11-14 03:59:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-14 03:59:53,784 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 50 states have (on average 3.88) internal successors, (194), 49 states have internal predecessors, (194), 15 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (47), 12 states have call predecessors, (47), 15 states have call successors, (47) Word has length 156 [2024-11-14 03:59:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:53,797 INFO L225 Difference]: With dead ends: 12045 [2024-11-14 03:59:53,797 INFO L226 Difference]: Without dead ends: 8859 [2024-11-14 03:59:53,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 503 SyntacticMatches, 2 SemanticMatches, 136 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5290 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=1888, Invalid=16414, Unknown=66, NotChecked=538, Total=18906 [2024-11-14 03:59:53,802 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 1995 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 7232 mSolverCounterSat, 649 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 7883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 7232 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:53,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 2463 Invalid, 7883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [649 Valid, 7232 Invalid, 2 Unknown, 0 Unchecked, 34.4s Time] [2024-11-14 03:59:53,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8859 states. [2024-11-14 03:59:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8859 to 4639. [2024-11-14 03:59:54,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4639 states, 4156 states have (on average 1.2064485081809433) internal successors, (5014), 4187 states have internal predecessors, (5014), 300 states have call successors, (300), 182 states have call predecessors, (300), 182 states have return successors, (300), 269 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-14 03:59:54,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4639 states to 4639 states and 5614 transitions. [2024-11-14 03:59:54,807 INFO L78 Accepts]: Start accepts. Automaton has 4639 states and 5614 transitions. Word has length 156 [2024-11-14 03:59:54,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:54,807 INFO L471 AbstractCegarLoop]: Abstraction has 4639 states and 5614 transitions. [2024-11-14 03:59:54,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 50 states have (on average 3.88) internal successors, (194), 49 states have internal predecessors, (194), 15 states have call successors, (47), 15 states have call predecessors, (47), 16 states have return successors, (47), 12 states have call predecessors, (47), 15 states have call successors, (47) [2024-11-14 03:59:54,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4639 states and 5614 transitions. [2024-11-14 03:59:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 03:59:54,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:54,811 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:54,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (76)] Forceful destruction successful, exit code 0 [2024-11-14 03:59:55,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2024-11-14 03:59:55,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-14 03:59:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:59:55,412 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:59:55,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2146385001, now seen corresponding path program 1 times [2024-11-14 03:59:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:59:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871570071] [2024-11-14 03:59:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:55,413 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 03:59:55,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:59:55,415 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:59:55,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (79)] Waiting until timeout for monitored process [2024-11-14 03:59:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:56,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:59:56,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:59:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-14 03:59:56,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:59:56,158 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:59:56,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871570071] [2024-11-14 03:59:56,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871570071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:59:56,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:59:56,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:59:56,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794910902] [2024-11-14 03:59:56,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:59:56,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:59:56,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:59:56,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:59:56,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:59:56,160 INFO L87 Difference]: Start difference. First operand 4639 states and 5614 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:59:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:59:57,180 INFO L93 Difference]: Finished difference Result 7945 states and 9586 transitions. [2024-11-14 03:59:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:59:57,181 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 156 [2024-11-14 03:59:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:59:57,188 INFO L225 Difference]: With dead ends: 7945 [2024-11-14 03:59:57,188 INFO L226 Difference]: Without dead ends: 3356 [2024-11-14 03:59:57,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:59:57,193 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:59:57,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 702 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:59:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3356 states. [2024-11-14 03:59:57,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3356 to 3246. [2024-11-14 03:59:57,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 2899 states have (on average 1.2035184546395308) internal successors, (3489), 2920 states have internal predecessors, (3489), 214 states have call successors, (214), 132 states have call predecessors, (214), 132 states have return successors, (214), 193 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-14 03:59:57,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3917 transitions. [2024-11-14 03:59:57,842 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3917 transitions. Word has length 156 [2024-11-14 03:59:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:59:57,842 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 3917 transitions. [2024-11-14 03:59:57,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:59:57,843 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3917 transitions. [2024-11-14 03:59:57,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 03:59:57,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:59:57,845 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:57,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (79)] Ended with exit code 0 [2024-11-14 03:59:58,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:59:58,046 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:59:58,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:59:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1590941437, now seen corresponding path program 1 times [2024-11-14 03:59:58,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:59:58,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616546532] [2024-11-14 03:59:58,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:59:58,047 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 03:59:58,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:59:58,049 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 03:59:58,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (80)] Waiting until timeout for monitored process [2024-11-14 03:59:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:59:58,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:59:58,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:00,023 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 04:00:01,242 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 66 treesize of output 30 [2024-11-14 04:00:01,798 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 55 treesize of output 40 [2024-11-14 04:00:02,598 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 55 treesize of output 40 [2024-11-14 04:00:03,432 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 55 treesize of output 40 [2024-11-14 04:00:04,197 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 55 treesize of output 40 [2024-11-14 04:00:04,719 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 55 treesize of output 40 [2024-11-14 04:00:05,327 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 55 treesize of output 40 [2024-11-14 04:00:05,590 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 66 treesize of output 30 [2024-11-14 04:00:06,131 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 69 treesize of output 33 [2024-11-14 04:00:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 149 proven. 335 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 04:00:06,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:06,834 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2639 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2639) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (or (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0)))) is different from false [2024-11-14 04:00:06,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616546532] [2024-11-14 04:00:06,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1616546532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:06,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1756706060] [2024-11-14 04:00:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:06,927 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:00:06,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:00:06,930 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:00:06,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2024-11-14 04:00:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:09,976 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 04:00:09,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:11,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 04:00:13,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-11-14 04:00:14,295 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 55 treesize of output 40 [2024-11-14 04:00:15,039 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 55 treesize of output 40 [2024-11-14 04:00:15,797 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 55 treesize of output 40 [2024-11-14 04:00:16,597 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 55 treesize of output 40 [2024-11-14 04:00:17,195 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 55 treesize of output 40 [2024-11-14 04:00:17,996 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 55 treesize of output 40 [2024-11-14 04:00:18,779 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 63 treesize of output 31 [2024-11-14 04:00:19,036 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 149 proven. 335 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 04:00:19,036 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:19,395 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2673 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2673) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (or (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0)))) is different from false [2024-11-14 04:00:19,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1756706060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:19,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020132998] [2024-11-14 04:00:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:19,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:00:19,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:00:19,529 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:00:19,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2024-11-14 04:00:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:20,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 04:00:20,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:21,725 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 43 treesize of output 19 [2024-11-14 04:00:22,079 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 32 treesize of output 23 [2024-11-14 04:00:22,544 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 32 treesize of output 23 [2024-11-14 04:00:23,050 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 32 treesize of output 23 [2024-11-14 04:00:23,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-14 04:00:23,989 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 32 treesize of output 23 [2024-11-14 04:00:24,545 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 32 treesize of output 23 [2024-11-14 04:00:24,816 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 43 treesize of output 19 [2024-11-14 04:00:25,337 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 69 treesize of output 33 [2024-11-14 04:00:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 144 proven. 320 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-14 04:00:25,445 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:00:25,671 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2705 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (let ((.cse1 (select (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2705) |c_~#float_Array_0~0.base|) |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (or (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0)))) is different from false [2024-11-14 04:00:25,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020132998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:00:25,790 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:00:25,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 10] total 33 [2024-11-14 04:00:25,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797868507] [2024-11-14 04:00:25,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 04:00:25,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 04:00:25,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:25,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 04:00:25,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1212, Unknown=3, NotChecked=228, Total=1722 [2024-11-14 04:00:25,792 INFO L87 Difference]: Start difference. First operand 3246 states and 3917 transitions. Second operand has 34 states, 32 states have (on average 5.96875) internal successors, (191), 32 states have internal predecessors, (191), 13 states have call successors, (48), 12 states have call predecessors, (48), 13 states have return successors, (48), 11 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-14 04:00:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:42,268 INFO L93 Difference]: Finished difference Result 10228 states and 12337 transitions. [2024-11-14 04:00:42,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 04:00:42,269 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 32 states have (on average 5.96875) internal successors, (191), 32 states have internal predecessors, (191), 13 states have call successors, (48), 12 states have call predecessors, (48), 13 states have return successors, (48), 11 states have call predecessors, (48), 13 states have call successors, (48) Word has length 156 [2024-11-14 04:00:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:42,282 INFO L225 Difference]: With dead ends: 10228 [2024-11-14 04:00:42,283 INFO L226 Difference]: Without dead ends: 7050 [2024-11-14 04:00:42,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 534 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=664, Invalid=2315, Unknown=3, NotChecked=324, Total=3306 [2024-11-14 04:00:42,288 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1371 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 3458 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 3634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 3458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:42,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 1245 Invalid, 3634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 3458 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2024-11-14 04:00:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7050 states. [2024-11-14 04:00:43,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7050 to 4190. [2024-11-14 04:00:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 3735 states have (on average 1.2018741633199463) internal successors, (4489), 3760 states have internal predecessors, (4489), 280 states have call successors, (280), 174 states have call predecessors, (280), 174 states have return successors, (280), 255 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-14 04:00:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 5049 transitions. [2024-11-14 04:00:43,065 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 5049 transitions. Word has length 156 [2024-11-14 04:00:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:43,065 INFO L471 AbstractCegarLoop]: Abstraction has 4190 states and 5049 transitions. [2024-11-14 04:00:43,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 32 states have (on average 5.96875) internal successors, (191), 32 states have internal predecessors, (191), 13 states have call successors, (48), 12 states have call predecessors, (48), 13 states have return successors, (48), 11 states have call predecessors, (48), 13 states have call successors, (48) [2024-11-14 04:00:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 5049 transitions. [2024-11-14 04:00:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-14 04:00:43,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:43,068 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:43,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2024-11-14 04:00:43,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:43,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (80)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:43,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:43,669 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:00:43,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1119585087, now seen corresponding path program 1 times [2024-11-14 04:00:43,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:43,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478788560] [2024-11-14 04:00:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:43,671 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 04:00:43,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:43,672 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:43,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (83)] Waiting until timeout for monitored process [2024-11-14 04:00:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:44,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:00:44,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-14 04:00:44,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:44,388 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:44,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1478788560] [2024-11-14 04:00:44,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1478788560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:44,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:44,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 04:00:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129144656] [2024-11-14 04:00:44,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:44,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:00:44,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:44,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:00:44,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:00:44,389 INFO L87 Difference]: Start difference. First operand 4190 states and 5049 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 04:00:45,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:45,348 INFO L93 Difference]: Finished difference Result 7045 states and 8448 transitions. [2024-11-14 04:00:45,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:00:45,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 156 [2024-11-14 04:00:45,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:45,356 INFO L225 Difference]: With dead ends: 7045 [2024-11-14 04:00:45,356 INFO L226 Difference]: Without dead ends: 2875 [2024-11-14 04:00:45,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:00:45,361 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:45,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 697 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 04:00:45,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2024-11-14 04:00:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2611. [2024-11-14 04:00:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2320 states have (on average 1.1900862068965516) internal successors, (2761), 2332 states have internal predecessors, (2761), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:00:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3117 transitions. [2024-11-14 04:00:45,852 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3117 transitions. Word has length 156 [2024-11-14 04:00:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:45,852 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3117 transitions. [2024-11-14 04:00:45,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 04:00:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3117 transitions. [2024-11-14 04:00:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-14 04:00:45,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:45,855 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:45,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (83)] Ended with exit code 0 [2024-11-14 04:00:46,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:46,056 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:00:46,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:46,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1170443918, now seen corresponding path program 1 times [2024-11-14 04:00:46,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:46,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020963651] [2024-11-14 04:00:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:46,057 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 04:00:46,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:46,060 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:46,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (84)] Waiting until timeout for monitored process [2024-11-14 04:00:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:46,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-14 04:00:46,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:49,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:00:49,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 176 treesize of output 62 [2024-11-14 04:00:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:00:49,241 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:00:49,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:00:49,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020963651] [2024-11-14 04:00:49,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020963651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:00:49,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:00:49,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-14 04:00:49,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817550462] [2024-11-14 04:00:49,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:00:49,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:00:49,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:00:49,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:00:49,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-14 04:00:49,243 INFO L87 Difference]: Start difference. First operand 2611 states and 3117 transitions. Second operand has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:00:57,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:00:57,021 INFO L93 Difference]: Finished difference Result 5599 states and 6736 transitions. [2024-11-14 04:00:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-14 04:00:57,022 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 157 [2024-11-14 04:00:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:00:57,029 INFO L225 Difference]: With dead ends: 5599 [2024-11-14 04:00:57,029 INFO L226 Difference]: Without dead ends: 3056 [2024-11-14 04:00:57,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=70, Invalid=350, Unknown=0, NotChecked=0, Total=420 [2024-11-14 04:00:57,032 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 154 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:00:57,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 925 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-14 04:00:57,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3056 states. [2024-11-14 04:00:57,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3056 to 2733. [2024-11-14 04:00:57,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2442 states have (on average 1.187141687141687) internal successors, (2899), 2454 states have internal predecessors, (2899), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:00:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 3255 transitions. [2024-11-14 04:00:57,559 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 3255 transitions. Word has length 157 [2024-11-14 04:00:57,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:00:57,559 INFO L471 AbstractCegarLoop]: Abstraction has 2733 states and 3255 transitions. [2024-11-14 04:00:57,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.666666666666667) internal successors, (70), 14 states have internal predecessors, (70), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:00:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 3255 transitions. [2024-11-14 04:00:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 04:00:57,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:00:57,561 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:57,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (84)] Forceful destruction successful, exit code 0 [2024-11-14 04:00:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:57,762 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:00:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:00:57,762 INFO L85 PathProgramCache]: Analyzing trace with hash -943062864, now seen corresponding path program 1 times [2024-11-14 04:00:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:00:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551163836] [2024-11-14 04:00:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:00:57,763 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 04:00:57,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:00:57,765 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:00:57,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (85)] Waiting until timeout for monitored process [2024-11-14 04:00:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:00:58,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:00:58,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:00:58,863 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 04:00:59,743 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 42 treesize of output 20 [2024-11-14 04:01:00,184 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 31 treesize of output 24 [2024-11-14 04:01:00,516 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 31 treesize of output 24 [2024-11-14 04:01:00,873 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 31 treesize of output 24 [2024-11-14 04:01:01,327 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 31 treesize of output 24 [2024-11-14 04:01:01,796 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 31 treesize of output 24 [2024-11-14 04:01:02,202 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 31 treesize of output 24 [2024-11-14 04:01:02,567 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 31 treesize of output 24 [2024-11-14 04:01:02,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 29 [2024-11-14 04:01:03,211 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 46 treesize of output 35 [2024-11-14 04:01:03,382 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 46 treesize of output 35 [2024-11-14 04:01:03,906 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:03,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 82 treesize of output 40 [2024-11-14 04:01:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 98 proven. 368 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-14 04:01:04,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:04,949 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551163836] [2024-11-14 04:01:04,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551163836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:04,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [651793418] [2024-11-14 04:01:04,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:04,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:01:04,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:01:04,952 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:01:04,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2024-11-14 04:01:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:07,917 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 04:01:07,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:08,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 04:01:10,012 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 31 treesize of output 26 [2024-11-14 04:01:10,727 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 35 treesize of output 26 [2024-11-14 04:01:11,202 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 35 treesize of output 26 [2024-11-14 04:01:11,642 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 35 treesize of output 26 [2024-11-14 04:01:12,264 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 35 treesize of output 26 [2024-11-14 04:01:12,815 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 35 treesize of output 26 [2024-11-14 04:01:13,517 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 35 treesize of output 26 [2024-11-14 04:01:14,028 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 35 treesize of output 26 [2024-11-14 04:01:14,743 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 44 treesize of output 38 [2024-11-14 04:01:15,200 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 48 treesize of output 35 [2024-11-14 04:01:15,391 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 48 treesize of output 35 [2024-11-14 04:01:16,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 44 [2024-11-14 04:01:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 98 proven. 368 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-14 04:01:16,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:16,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [651793418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:16,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220048016] [2024-11-14 04:01:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:16,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:16,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:16,660 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:16,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2024-11-14 04:01:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:17,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:01:17,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:18,627 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 19 treesize of output 19 [2024-11-14 04:01:18,897 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 24 treesize of output 17 [2024-11-14 04:01:18,983 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 24 treesize of output 17 [2024-11-14 04:01:19,813 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:19,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 69 treesize of output 35 [2024-11-14 04:01:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 04:01:19,834 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:20,264 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2862 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_2862) |c_~#BOOL_unsigned_char_Array_0~0.base|))) (let ((.cse1 ((_ extract 7 0) (select .cse0 |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (select .cse0 (bvadd (_ bv1 32) |c_~#BOOL_unsigned_char_Array_0~0.offset|)))) ((_ zero_extend 24) .cse1)) (= (_ bv0 8) .cse1))))) is different from false [2024-11-14 04:01:20,431 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:20,432 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 55 [2024-11-14 04:01:20,442 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:20,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 79 treesize of output 55 [2024-11-14 04:01:20,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:20,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 28 treesize of output 20 [2024-11-14 04:01:20,867 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:01:20,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220048016] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:20,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:01:20,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [18, 19, 12] total 48 [2024-11-14 04:01:20,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094338690] [2024-11-14 04:01:20,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:20,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:01:20,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:20,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:01:20,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2020, Unknown=19, NotChecked=94, Total=2450 [2024-11-14 04:01:20,870 INFO L87 Difference]: Start difference. First operand 2733 states and 3255 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:24,125 INFO L93 Difference]: Finished difference Result 4120 states and 4940 transitions. [2024-11-14 04:01:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:01:24,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-14 04:01:24,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:24,133 INFO L225 Difference]: With dead ends: 4120 [2024-11-14 04:01:24,133 INFO L226 Difference]: Without dead ends: 4118 [2024-11-14 04:01:24,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=368, Invalid=2475, Unknown=23, NotChecked=104, Total=2970 [2024-11-14 04:01:24,135 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 406 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 250 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:24,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 576 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 591 Invalid, 0 Unknown, 250 Unchecked, 2.2s Time] [2024-11-14 04:01:24,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2024-11-14 04:01:24,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 3868. [2024-11-14 04:01:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3868 states, 3577 states have (on average 1.1915012580374615) internal successors, (4262), 3589 states have internal predecessors, (4262), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:01:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3868 states to 3868 states and 4618 transitions. [2024-11-14 04:01:24,629 INFO L78 Accepts]: Start accepts. Automaton has 3868 states and 4618 transitions. Word has length 158 [2024-11-14 04:01:24,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:24,629 INFO L471 AbstractCegarLoop]: Abstraction has 3868 states and 4618 transitions. [2024-11-14 04:01:24,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:24,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3868 states and 4618 transitions. [2024-11-14 04:01:24,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 04:01:24,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:24,633 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:24,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (85)] Forceful destruction successful, exit code 0 [2024-11-14 04:01:24,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2024-11-14 04:01:25,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2024-11-14 04:01:25,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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=3,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:25,235 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:25,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash 629414533, now seen corresponding path program 1 times [2024-11-14 04:01:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:25,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075002930] [2024-11-14 04:01:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:25,236 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 04:01:25,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:25,238 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:25,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (88)] Waiting until timeout for monitored process [2024-11-14 04:01:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:26,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 04:01:26,119 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:27,377 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 04:01:28,303 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 69 treesize of output 54 [2024-11-14 04:01:28,964 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 69 treesize of output 54 [2024-11-14 04:01:29,728 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 69 treesize of output 54 [2024-11-14 04:01:30,325 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 69 treesize of output 54 [2024-11-14 04:01:30,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 54 [2024-11-14 04:01:31,611 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 114 treesize of output 87 [2024-11-14 04:01:32,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:32,068 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 170 treesize of output 89 [2024-11-14 04:01:32,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:32,763 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 221 treesize of output 95 [2024-11-14 04:01:34,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:34,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 205 treesize of output 73 [2024-11-14 04:01:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 04:01:35,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:01:38,713 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:38,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075002930] [2024-11-14 04:01:38,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075002930] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:38,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 04:01:38,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [22] total 34 [2024-11-14 04:01:38,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705303092] [2024-11-14 04:01:38,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:38,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 04:01:38,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:38,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 04:01:38,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=935, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:01:38,715 INFO L87 Difference]: Start difference. First operand 3868 states and 4618 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:48,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:48,371 INFO L93 Difference]: Finished difference Result 8756 states and 10505 transitions. [2024-11-14 04:01:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-14 04:01:48,372 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-14 04:01:48,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:48,379 INFO L225 Difference]: With dead ends: 8756 [2024-11-14 04:01:48,379 INFO L226 Difference]: Without dead ends: 4956 [2024-11-14 04:01:48,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=409, Invalid=1571, Unknown=0, NotChecked=0, Total=1980 [2024-11-14 04:01:48,382 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 370 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 921 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:48,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 944 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 921 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-14 04:01:48,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states. [2024-11-14 04:01:48,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 4038. [2024-11-14 04:01:48,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4038 states, 3747 states have (on average 1.1860154790499067) internal successors, (4444), 3759 states have internal predecessors, (4444), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:01:48,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4038 states to 4038 states and 4800 transitions. [2024-11-14 04:01:48,993 INFO L78 Accepts]: Start accepts. Automaton has 4038 states and 4800 transitions. Word has length 158 [2024-11-14 04:01:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:48,993 INFO L471 AbstractCegarLoop]: Abstraction has 4038 states and 4800 transitions. [2024-11-14 04:01:48,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4038 states and 4800 transitions. [2024-11-14 04:01:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 04:01:48,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:48,997 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:49,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (88)] Forceful destruction successful, exit code 0 [2024-11-14 04:01:49,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:49,198 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:49,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:49,198 INFO L85 PathProgramCache]: Analyzing trace with hash -283624039, now seen corresponding path program 1 times [2024-11-14 04:01:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752127502] [2024-11-14 04:01:49,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:49,199 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 04:01:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:49,202 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:49,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (89)] Waiting until timeout for monitored process [2024-11-14 04:01:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:50,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-14 04:01:50,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:50,501 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:01:50,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 106 treesize of output 34 [2024-11-14 04:01:50,633 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:01:50,633 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:01:50,633 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:50,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752127502] [2024-11-14 04:01:50,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752127502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:50,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:01:50,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-14 04:01:50,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976526783] [2024-11-14 04:01:50,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:50,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 04:01:50,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:50,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 04:01:50,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:01:50,634 INFO L87 Difference]: Start difference. First operand 4038 states and 4800 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:53,360 INFO L93 Difference]: Finished difference Result 8286 states and 9936 transitions. [2024-11-14 04:01:53,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 04:01:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-14 04:01:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:53,368 INFO L225 Difference]: With dead ends: 8286 [2024-11-14 04:01:53,368 INFO L226 Difference]: Without dead ends: 4316 [2024-11-14 04:01:53,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-14 04:01:53,371 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 8 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:53,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 742 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-14 04:01:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4316 states. [2024-11-14 04:01:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4316 to 4206. [2024-11-14 04:01:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4206 states, 3915 states have (on average 1.189272030651341) internal successors, (4656), 3927 states have internal predecessors, (4656), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:01:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4206 states to 4206 states and 5012 transitions. [2024-11-14 04:01:53,881 INFO L78 Accepts]: Start accepts. Automaton has 4206 states and 5012 transitions. Word has length 158 [2024-11-14 04:01:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:53,881 INFO L471 AbstractCegarLoop]: Abstraction has 4206 states and 5012 transitions. [2024-11-14 04:01:53,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4206 states and 5012 transitions. [2024-11-14 04:01:53,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 04:01:53,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:53,884 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:53,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (89)] Forceful destruction successful, exit code 0 [2024-11-14 04:01:54,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:54,084 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:54,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:54,085 INFO L85 PathProgramCache]: Analyzing trace with hash -647439266, now seen corresponding path program 1 times [2024-11-14 04:01:54,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:54,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40250917] [2024-11-14 04:01:54,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:54,085 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 04:01:54,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:54,088 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:54,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (90)] Waiting until timeout for monitored process [2024-11-14 04:01:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:54,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 04:01:54,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:55,301 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 46 treesize of output 22 [2024-11-14 04:01:55,355 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:01:55,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:01:55,355 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:01:55,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40250917] [2024-11-14 04:01:55,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40250917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:55,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:01:55,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:01:55,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903060326] [2024-11-14 04:01:55,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:55,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:01:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:01:55,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:01:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:01:55,357 INFO L87 Difference]: Start difference. First operand 4206 states and 5012 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:58,338 INFO L93 Difference]: Finished difference Result 9144 states and 10962 transitions. [2024-11-14 04:01:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:01:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-14 04:01:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:58,347 INFO L225 Difference]: With dead ends: 9144 [2024-11-14 04:01:58,347 INFO L226 Difference]: Without dead ends: 5006 [2024-11-14 04:01:58,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:01:58,350 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 146 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:58,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 425 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-14 04:01:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5006 states. [2024-11-14 04:01:58,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5006 to 4248. [2024-11-14 04:01:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4248 states, 3957 states have (on average 1.1857467778620168) internal successors, (4692), 3969 states have internal predecessors, (4692), 178 states have call successors, (178), 112 states have call predecessors, (178), 112 states have return successors, (178), 166 states have call predecessors, (178), 178 states have call successors, (178) [2024-11-14 04:01:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4248 states to 4248 states and 5048 transitions. [2024-11-14 04:01:58,871 INFO L78 Accepts]: Start accepts. Automaton has 4248 states and 5048 transitions. Word has length 158 [2024-11-14 04:01:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:58,871 INFO L471 AbstractCegarLoop]: Abstraction has 4248 states and 5048 transitions. [2024-11-14 04:01:58,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-14 04:01:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states and 5048 transitions. [2024-11-14 04:01:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 04:01:58,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:58,874 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:58,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (90)] Ended with exit code 0 [2024-11-14 04:01:59,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:59,075 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:59,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:59,075 INFO L85 PathProgramCache]: Analyzing trace with hash -428584548, now seen corresponding path program 1 times [2024-11-14 04:01:59,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:01:59,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852794576] [2024-11-14 04:01:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:59,076 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 04:01:59,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:01:59,078 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 04:01:59,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/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 (91)] Waiting until timeout for monitored process [2024-11-14 04:01:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:59,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 04:01:59,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:01,367 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 04:02:02,254 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 69 treesize of output 54 [2024-11-14 04:02:02,928 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 69 treesize of output 54 [2024-11-14 04:02:03,545 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 69 treesize of output 54 [2024-11-14 04:02:04,112 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 69 treesize of output 54 [2024-11-14 04:02:04,636 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 69 treesize of output 54 [2024-11-14 04:02:05,360 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 69 treesize of output 54 [2024-11-14 04:02:05,757 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 131 treesize of output 67 [2024-11-14 04:02:06,286 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:02:06,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 184 treesize of output 70 [2024-11-14 04:02:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 04:02:06,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:08,053 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2980 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_523| (_ BitVec 32))) (let ((.cse3 (select (store |c_#memory_int| |c_~#BOOL_unsigned_char_Array_0~0.base| v_ArrVal_2980) |c_~#float_Array_0~0.base|))) (let ((.cse0 (let ((.cse4 (select .cse3 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)))) (.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_523|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_523|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_523|)))) (or (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) .cse0) (not (= .cse1 (let ((.cse2 (select .cse3 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (fp.lt .cse0 .cse1)))))) is different from false [2024-11-14 04:02:08,285 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:02:08,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852794576] [2024-11-14 04:02:08,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852794576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:08,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [115513517] [2024-11-14 04:02:08,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:08,287 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:02:08,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:02:08,289 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:02:08,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (92)] Waiting until timeout for monitored process [2024-11-14 04:02:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:10,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-14 04:02:10,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:12,550 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 04:02:13,132 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 69 treesize of output 54 [2024-11-14 04:02:13,846 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 69 treesize of output 54 [2024-11-14 04:02:14,535 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 69 treesize of output 54 [2024-11-14 04:02:15,077 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 69 treesize of output 54 [2024-11-14 04:02:15,610 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 69 treesize of output 54 [2024-11-14 04:02:16,211 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 69 treesize of output 54 [2024-11-14 04:02:16,437 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 131 treesize of output 67 [2024-11-14 04:02:16,827 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 140 proven. 320 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-14 04:02:16,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:17,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [115513517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:17,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653284565] [2024-11-14 04:02:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:17,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:17,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:17,909 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:17,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_697cd753-1fa0-4a98-9efa-36cfd9dff562/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2024-11-14 04:02:18,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:18,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-14 04:02:18,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:18,999 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 71 treesize of output 43 [2024-11-14 04:02:20,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 04:02:20,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 133 treesize of output 43 [2024-11-14 04:02:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 04:02:21,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-14 04:02:25,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653284565] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:25,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:02:25,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 14, 13] total 34 [2024-11-14 04:02:25,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140282889] [2024-11-14 04:02:25,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:02:25,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 04:02:25,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:02:25,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 04:02:25,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1466, Unknown=15, NotChecked=78, Total=1722 [2024-11-14 04:02:25,263 INFO L87 Difference]: Start difference. First operand 4248 states and 5048 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 11 states have internal predecessors, (71), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18)