./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:08:55,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:08:55,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:08:55,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:08:55,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:08:55,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:08:55,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:08:55,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:08:55,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:08:55,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:08:55,363 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:08:55,363 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:08:55,364 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:08:55,365 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:08:55,365 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:08:55,365 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:08:55,365 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:08:55,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:08:55,367 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:08:55,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:08:55,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:08:55,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:08:55,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:08:55,368 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:08:55,368 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:08:55,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:08:55,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:08:55,369 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:08:55,369 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:08:55,369 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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 -> 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d [2024-11-14 03:08:55,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:08:55,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:08:55,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:08:55,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:08:55,717 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:08:55,720 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i Unable to find full path for "g++" [2024-11-14 03:08:58,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:08:58,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:08:58,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-11-14 03:08:58,400 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/c636190cf/240034d9e153485198ab4947e391c34d/FLAG1e325d19a [2024-11-14 03:08:58,425 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/c636190cf/240034d9e153485198ab4947e391c34d [2024-11-14 03:08:58,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:08:58,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:08:58,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:08:58,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:08:58,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:08:58,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a695d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58, skipping insertion in model container [2024-11-14 03:08:58,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,480 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:08:58,698 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-11-14 03:08:58,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:08:58,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:08:58,795 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-11-14 03:08:58,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:08:58,867 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:08:58,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58 WrapperNode [2024-11-14 03:08:58,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:08:58,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:08:58,870 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:08:58,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:08:58,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,941 INFO L138 Inliner]: procedures = 29, calls = 189, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 591 [2024-11-14 03:08:58,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:08:58,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:08:58,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:08:58,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:08:58,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:58,998 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:08:58,999 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:08:58,999 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:08:58,999 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:08:59,000 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (1/1) ... [2024-11-14 03:08:59,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:08:59,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:08:59,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:08:59,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:08:59,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 03:08:59,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:08:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:08:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:08:59,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:08:59,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:08:59,333 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:08:59,335 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:09:00,257 INFO L? ?]: Removed 142 outVars from TransFormulas that were not future-live. [2024-11-14 03:09:00,257 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:09:01,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:09:01,261 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:09:01,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:01 BoogieIcfgContainer [2024-11-14 03:09:01,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:09:01,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:09:01,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:09:01,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:09:01,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:08:58" (1/3) ... [2024-11-14 03:09:01,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a75b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:01, skipping insertion in model container [2024-11-14 03:09:01,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:08:58" (2/3) ... [2024-11-14 03:09:01,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a75b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:01, skipping insertion in model container [2024-11-14 03:09:01,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:01" (3/3) ... [2024-11-14 03:09:01,278 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-25.i [2024-11-14 03:09:01,298 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:09:01,302 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-25.i that has 2 procedures, 45 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:09:01,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:09:01,412 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;@7cd056c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:09:01,413 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:09:01,418 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 03:09:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:09:01,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:01,433 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 03:09:01,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:01,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:01,442 INFO L85 PathProgramCache]: Analyzing trace with hash -20877499, now seen corresponding path program 1 times [2024-11-14 03:09:01,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:01,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493485346] [2024-11-14 03:09:01,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:01,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:09:07,907 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:09:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:09:12,161 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:09:12,164 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:09:12,166 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:09:12,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:09:12,174 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:09:12,429 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:09:12,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:09:12 BoogieIcfgContainer [2024-11-14 03:09:12,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:09:12,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:09:12,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:09:12,434 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:09:12,435 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:01" (3/4) ... [2024-11-14 03:09:12,438 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:09:12,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:09:12,441 INFO L158 Benchmark]: Toolchain (without parser) took 14008.97ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 92.2MB in the beginning and 435.8MB in the end (delta: -343.5MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2024-11-14 03:09:12,444 INFO L158 Benchmark]: CDTParser took 2.24ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:09:12,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.38ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:09:12,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.41ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:09:12,446 INFO L158 Benchmark]: Boogie Preprocessor took 55.53ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:09:12,446 INFO L158 Benchmark]: RCFGBuilder took 2262.98ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 50.7MB in the end (delta: 20.8MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2024-11-14 03:09:12,447 INFO L158 Benchmark]: TraceAbstraction took 11168.88ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 49.8MB in the beginning and 435.8MB in the end (delta: -386.0MB). Peak memory consumption was 296.6MB. Max. memory is 16.1GB. [2024-11-14 03:09:12,447 INFO L158 Benchmark]: Witness Printer took 5.86ms. Allocated memory is still 553.6MB. Free memory was 435.8MB in the beginning and 435.8MB in the end (delta: 49.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:09:12,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.24ms. Allocated memory is still 83.9MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.38ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.3MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.41ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.0MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.53ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 71.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2262.98ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 50.7MB in the end (delta: 20.8MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11168.88ms. Allocated memory was 117.4MB in the beginning and 553.6MB in the end (delta: 436.2MB). Free memory was 49.8MB in the beginning and 435.8MB in the end (delta: -386.0MB). Peak memory consumption was 296.6MB. Max. memory is 16.1GB. * Witness Printer took 5.86ms. Allocated memory is still 553.6MB. Free memory was 435.8MB in the beginning and 435.8MB in the end (delta: 49.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 106, overapproximation of someBinaryFLOATComparisonOperation at line 53, overapproximation of someBinaryFLOATComparisonOperation at line 104. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned long int var_1_1 = 256; [L23] unsigned long int* var_1_1_Pointer = &(var_1_1); [L24] unsigned char var_1_2 = 0; [L25] unsigned char* var_1_2_Pointer = &(var_1_2); [L26] unsigned short int var_1_3 = 10; [L27] unsigned short int* var_1_3_Pointer = &(var_1_3); [L28] unsigned short int var_1_4 = 500; [L29] unsigned short int* var_1_4_Pointer = &(var_1_4); [L30] unsigned long int var_1_5 = 0; [L31] unsigned long int* var_1_5_Pointer = &(var_1_5); [L32] unsigned long int var_1_6 = 1509114200; [L33] unsigned long int* var_1_6_Pointer = &(var_1_6); [L34] unsigned long int var_1_7 = 10; [L35] unsigned long int* var_1_7_Pointer = &(var_1_7); [L36] float var_1_8 = 128.9; [L37] float* var_1_8_Pointer = &(var_1_8); [L38] float var_1_9 = 63.363; [L39] float* var_1_9_Pointer = &(var_1_9); [L40] float var_1_10 = 4.575; [L41] float* var_1_10_Pointer = &(var_1_10); [L42] float var_1_11 = 25.5; [L43] float* var_1_11_Pointer = &(var_1_11); [L44] unsigned char var_1_12 = 1; [L45] unsigned char* var_1_12_Pointer = &(var_1_12); [L46] unsigned char var_1_13 = 0; [L47] unsigned char* var_1_13_Pointer = &(var_1_13); [L48] unsigned char var_1_14 = 1; [L49] unsigned char* var_1_14_Pointer = &(var_1_14); [L121] isInitial = 1 [L122] FCALL initially() [L123] COND TRUE 1 [L124] FCALL updateLastVariables() [L125] CALL updateVariables() [L85] var_1_2 = __VERIFIER_nondet_uchar() [L86] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L86] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L87] EXPR \read(var_1_2) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L87] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L88] var_1_3 = __VERIFIER_nondet_ushort() [L89] EXPR \read(var_1_3) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L89] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L90] EXPR \read(var_1_3) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L90] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L91] var_1_4 = __VERIFIER_nondet_ushort() [L92] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L92] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L93] EXPR \read(var_1_4) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L93] CALL assume_abort_if_not(var_1_4 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_4 <= 65535) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L94] var_1_5 = __VERIFIER_nondet_ulong() [L95] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L95] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L96] EXPR \read(var_1_5) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L96] CALL assume_abort_if_not(var_1_5 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 <= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L97] var_1_6 = __VERIFIER_nondet_ulong() [L98] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L98] CALL assume_abort_if_not(var_1_6 >= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_6 >= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L99] EXPR \read(var_1_6) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L99] CALL assume_abort_if_not(var_1_6 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_6 <= 2147483647) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L100] var_1_7 = __VERIFIER_nondet_ulong() [L101] EXPR \read(var_1_7) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L101] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L102] EXPR \read(var_1_7) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L102] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L103] var_1_9 = __VERIFIER_nondet_float() [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L104] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L105] var_1_10 = __VERIFIER_nondet_float() [L106] EXPR \read(var_1_10) [L106] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F [L106] EXPR \read(var_1_10) [L106] EXPR var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F [L106] EXPR (var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F ) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L106] CALL assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_10 >= -922337.2036854765600e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854765600e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L107] var_1_13 = __VERIFIER_nondet_uchar() [L108] EXPR \read(var_1_13) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L108] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L109] EXPR \read(var_1_13) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L109] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L110] var_1_14 = __VERIFIER_nondet_uchar() [L111] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L111] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L112] EXPR \read(var_1_14) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L112] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L125] RET updateVariables() [L126] CALL step() [L53] EXPR \read(*var_1_9_Pointer) [L53] EXPR \read(*var_1_10_Pointer) [L53] COND FALSE !((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) [L60] EXPR \read(*var_1_14_Pointer) [L60] (*(var_1_12_Pointer)) = (*(var_1_14_Pointer)) [L62] EXPR \read(*var_1_3_Pointer) [L62] unsigned short int stepLocal_0 = (*(var_1_3_Pointer)); [L63] EXPR \read(*var_1_12_Pointer) [L63] COND TRUE (*(var_1_12_Pointer)) [L64] EXPR \read(*var_1_4_Pointer) [L64] COND FALSE !(stepLocal_0 <= (*(var_1_4_Pointer))) [L70] EXPR \read(*var_1_1_Pointer) [L70] unsigned long int stepLocal_1 = (*(var_1_1_Pointer)); [L71] EXPR \read(*var_1_7_Pointer) [L71] COND FALSE !((*(var_1_7_Pointer)) >= stepLocal_1) [L74] EXPR \read(*var_1_9_Pointer) [L74] EXPR \read(*var_1_10_Pointer) [L74] EXPR (((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))) [L74] EXPR \read(*var_1_10_Pointer) [L74] EXPR (((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))) [L74] (*(var_1_8_Pointer)) = (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))) [L76] EXPR \read(*var_1_10_Pointer) [L76] EXPR \read(*var_1_9_Pointer) [L76] EXPR ((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer))) [L76] EXPR \read(*var_1_8_Pointer) [L76] EXPR ((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))) [L76] EXPR \read(*var_1_8_Pointer) [L76] EXPR ((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))) [L76] COND TRUE (*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer))))) [L77] EXPR \read(*var_1_10_Pointer) [L77] (*(var_1_11_Pointer)) = (*(var_1_10_Pointer)) [L126] RET step() [L127] CALL, EXPR property() [L117] EXPR \read(*var_1_12_Pointer) [L117] EXPR (*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) [L117] EXPR \read(*var_1_3_Pointer) [L117] EXPR \read(*var_1_4_Pointer) [L117] EXPR ((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1 [L117] EXPR (*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer)))) [L117] EXPR ((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer)))))))) [L117] EXPR \read(*var_1_7_Pointer) [L117] EXPR \read(*var_1_1_Pointer) [L117] EXPR ((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) [L117] EXPR \read(*var_1_8_Pointer) [L117] EXPR \read(*var_1_9_Pointer) [L117] EXPR \read(*var_1_10_Pointer) [L117] EXPR (((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))) [L117] EXPR \read(*var_1_10_Pointer) [L117] EXPR (((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))) [L117] EXPR ((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))) [L117] EXPR ((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer)))))))) [L117] EXPR (((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1)) [L117] EXPR ((((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1))) && (((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) ? (((*(var_1_2_Pointer)) || (*(var_1_13_Pointer))) ? ((*(var_1_12_Pointer)) == ((unsigned char) ((*(var_1_13_Pointer)) || (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) [L117-L118] return ((((*(var_1_12_Pointer)) ? (((*(var_1_3_Pointer)) <= (*(var_1_4_Pointer))) ? ((*(var_1_1_Pointer)) == ((unsigned long int) ((((((*(var_1_3_Pointer))) > (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer))))) ? ((*(var_1_3_Pointer))) : (((*(var_1_4_Pointer)) + (*(var_1_5_Pointer)))))) + ((*(var_1_6_Pointer)) - (*(var_1_7_Pointer)))))) : 1) : ((*(var_1_1_Pointer)) == ((unsigned long int) (*(var_1_7_Pointer))))) && (((*(var_1_7_Pointer)) >= (*(var_1_1_Pointer))) ? ((*(var_1_8_Pointer)) == ((float) ((((0.5f) < ((*(var_1_9_Pointer)))) ? (0.5f) : ((*(var_1_9_Pointer))))))) : ((*(var_1_8_Pointer)) == ((float) (((((*(var_1_9_Pointer))) < ((*(var_1_10_Pointer)))) ? ((*(var_1_9_Pointer))) : ((*(var_1_10_Pointer))))))))) && (((*(var_1_10_Pointer)) >= ((((((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) < ((*(var_1_8_Pointer)))) ? (((((128.175f) > ((*(var_1_9_Pointer)))) ? (128.175f) : ((*(var_1_9_Pointer)))))) : ((*(var_1_8_Pointer)))))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_10_Pointer)))) : ((! ((*(var_1_7_Pointer)) <= (*(var_1_6_Pointer)))) ? ((*(var_1_11_Pointer)) == ((float) (*(var_1_9_Pointer)))) : 1))) && (((*(var_1_9_Pointer)) != (*(var_1_10_Pointer))) ? (((*(var_1_2_Pointer)) || (*(var_1_13_Pointer))) ? ((*(var_1_12_Pointer)) == ((unsigned char) ((*(var_1_13_Pointer)) || (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) : ((*(var_1_12_Pointer)) == ((unsigned char) (*(var_1_14_Pointer))))) ; [L127] RET, EXPR property() [L127] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] [L19] reach_error() VAL [isInitial=1, var_1_10={13:0}, var_1_10_Pointer={13:0}, var_1_11={14:0}, var_1_11_Pointer={14:0}, var_1_12={15:0}, var_1_12_Pointer={15:0}, var_1_13={16:0}, var_1_13_Pointer={16:0}, var_1_14={17:0}, var_1_14_Pointer={17:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_4={7:0}, var_1_4_Pointer={7:0}, var_1_5={8:0}, var_1_5_Pointer={8:0}, var_1_6={9:0}, var_1_6_Pointer={9:0}, var_1_7={10:0}, var_1_7_Pointer={10:0}, var_1_8={11:0}, var_1_8_Pointer={11:0}, var_1_9={12:0}, var_1_9_Pointer={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.8s, 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, 6.2s 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 03:09:12,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:09:15,881 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:09:16,003 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:09:16,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:09:16,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:09:16,096 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:09:16,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:09:16,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:09:16,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:09:16,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:09:16,100 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:09:16,101 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:09:16,102 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:09:16,102 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:09:16,102 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:09:16,102 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:09:16,103 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:09:16,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:09:16,104 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:09:16,105 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:09:16,105 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:09:16,105 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:09:16,105 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:09:16,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:09:16,106 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:09:16,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:09:16,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:09:16,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:09:16,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:09:16,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:09:16,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:09:16,108 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:09:16,108 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/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 -> 406fa70e547fbe706895109d7567f9108a5cd6147a3189c522defa5caa910d5d [2024-11-14 03:09:16,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:09:16,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:09:16,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:09:16,520 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:09:16,521 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:09:16,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i Unable to find full path for "g++" [2024-11-14 03:09:18,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:09:19,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:09:19,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i [2024-11-14 03:09:19,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/14476c22e/4bed6d5317b6487aaa8d7c547957c624/FLAG7c37ea954 [2024-11-14 03:09:19,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/data/14476c22e/4bed6d5317b6487aaa8d7c547957c624 [2024-11-14 03:09:19,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:09:19,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:09:19,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:09:19,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:09:19,335 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:09:19,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4113ed4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19, skipping insertion in model container [2024-11-14 03:09:19,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,367 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:09:19,573 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-11-14 03:09:19,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:09:19,680 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:09:19,693 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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-25.i[916,929] [2024-11-14 03:09:19,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:09:19,762 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:09:19,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19 WrapperNode [2024-11-14 03:09:19,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:09:19,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:09:19,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:09:19,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:09:19,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,861 INFO L138 Inliner]: procedures = 36, calls = 189, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 591 [2024-11-14 03:09:19,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:09:19,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:09:19,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:09:19,867 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:09:19,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,926 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,932 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:09:19,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:09:19,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:09:19,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:09:19,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (1/1) ... [2024-11-14 03:09:19,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:09:19,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:20,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:09:20,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:09:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 03:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 03:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:09:20,045 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:09:20,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 03:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-14 03:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:09:20,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:09:20,238 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:09:21,317 INFO L? ?]: Removed 150 outVars from TransFormulas that were not future-live. [2024-11-14 03:09:21,318 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:09:21,335 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:09:21,335 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:09:21,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:21 BoogieIcfgContainer [2024-11-14 03:09:21,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:09:21,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:09:21,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:09:21,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:09:21,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:09:19" (1/3) ... [2024-11-14 03:09:21,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca4225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:21, skipping insertion in model container [2024-11-14 03:09:21,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:09:19" (2/3) ... [2024-11-14 03:09:21,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca4225f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:09:21, skipping insertion in model container [2024-11-14 03:09:21,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:09:21" (3/3) ... [2024-11-14 03:09:21,355 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-25.i [2024-11-14 03:09:21,376 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:09:21,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-p_file-25.i that has 2 procedures, 124 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:09:21,485 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:09:21,508 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;@a9bb735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:09:21,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:09:21,514 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 03:09:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-14 03:09:21,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:21,534 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 03:09:21,537 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:21,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:21,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1206508205, now seen corresponding path program 1 times [2024-11-14 03:09:21,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914712137] [2024-11-14 03:09:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:21,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:09:21,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:21,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:21,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:22,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:09:22,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:22,267 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-14 03:09:22,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:22,268 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:22,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914712137] [2024-11-14 03:09:22,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914712137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:22,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:22,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:09:22,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258008208] [2024-11-14 03:09:22,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:22,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:09:22,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:22,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:09:22,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:09:22,372 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 03:09:22,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:22,423 INFO L93 Difference]: Finished difference Result 241 states and 378 transitions. [2024-11-14 03:09:22,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:09:22,426 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 03:09:22,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:22,439 INFO L225 Difference]: With dead ends: 241 [2024-11-14 03:09:22,439 INFO L226 Difference]: Without dead ends: 120 [2024-11-14 03:09:22,444 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 03:09:22,451 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 03:09:22,456 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 03:09:22,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-14 03:09:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-14 03:09:22,523 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 03:09:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 176 transitions. [2024-11-14 03:09:22,537 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 176 transitions. Word has length 144 [2024-11-14 03:09:22,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:22,539 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 176 transitions. [2024-11-14 03:09:22,539 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 03:09:22,540 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 176 transitions. [2024-11-14 03:09:22,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-14 03:09:22,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:22,547 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 03:09:22,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:22,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:22,748 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:22,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:22,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1603759539, now seen corresponding path program 1 times [2024-11-14 03:09:22,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:22,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917892395] [2024-11-14 03:09:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:22,751 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 03:09:22,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:22,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:22,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:23,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-14 03:09:23,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:25,071 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-14 03:09:25,073 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 1 case distinctions, treesize of input 36 treesize of output 35 [2024-11-14 03:09:25,179 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 03:09:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 03:09:25,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:26,017 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-14 03:09:26,017 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 25 [2024-11-14 03:09:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-14 03:09:26,500 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:26,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917892395] [2024-11-14 03:09:26,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917892395] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:26,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:09:26,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 23 [2024-11-14 03:09:26,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166411953] [2024-11-14 03:09:26,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:26,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:09:26,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:09:26,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=395, Unknown=0, NotChecked=0, Total=506 [2024-11-14 03:09:26,508 INFO L87 Difference]: Start difference. First operand 120 states and 176 transitions. Second operand has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:09:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:28,996 INFO L93 Difference]: Finished difference Result 256 states and 373 transitions. [2024-11-14 03:09:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:09:28,997 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 144 [2024-11-14 03:09:28,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:29,001 INFO L225 Difference]: With dead ends: 256 [2024-11-14 03:09:29,001 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 03:09:29,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 264 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=169, Invalid=587, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:09:29,003 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 191 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:29,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 616 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 03:09:29,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 03:09:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 126. [2024-11-14 03:09:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:09:29,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 181 transitions. [2024-11-14 03:09:29,028 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 181 transitions. Word has length 144 [2024-11-14 03:09:29,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:29,028 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 181 transitions. [2024-11-14 03:09:29,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 12 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:09:29,029 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 181 transitions. [2024-11-14 03:09:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-14 03:09:29,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:29,033 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 03:09:29,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:09:29,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:29,234 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:29,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1405685809, now seen corresponding path program 1 times [2024-11-14 03:09:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230025067] [2024-11-14 03:09:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:29,236 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 03:09:29,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:29,238 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:29,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:29,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 03:09:29,971 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:33,336 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-14 03:09:33,337 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 1 case distinctions, treesize of input 36 treesize of output 35 [2024-11-14 03:09:33,641 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 18 treesize of output 13 [2024-11-14 03:09:33,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:09:33,883 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 03:09:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 03:09:33,944 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:34,045 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_86 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_86) c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))))) is different from false [2024-11-14 03:09:34,084 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_86 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_85 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= ((_ extract 7 0) (select (select (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_85) c_~var_1_11_Pointer~0.base v_ArrVal_86) c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset)) (_ bv0 8)))) is different from false [2024-11-14 03:09:36,354 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:36,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230025067] [2024-11-14 03:09:36,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230025067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:36,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1711954266] [2024-11-14 03:09:36,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:36,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:09:36,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:09:36,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:09:36,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 03:09:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:37,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-14 03:09:37,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:38,943 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-14 03:09:38,943 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 1 case distinctions, treesize of input 17 treesize of output 25 [2024-11-14 03:09:39,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:09:39,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:09:39,671 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 27 treesize of output 15 [2024-11-14 03:09:39,987 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 03:09:39,988 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:39,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1711954266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:39,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:09:39,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 22 [2024-11-14 03:09:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416130829] [2024-11-14 03:09:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:39,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:09:39,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:39,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:09:39,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=545, Unknown=2, NotChecked=98, Total=756 [2024-11-14 03:09:39,991 INFO L87 Difference]: Start difference. First operand 126 states and 181 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 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 03:09:41,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:41,919 INFO L93 Difference]: Finished difference Result 313 states and 450 transitions. [2024-11-14 03:09:41,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:09:41,920 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 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 03:09:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:41,922 INFO L225 Difference]: With dead ends: 313 [2024-11-14 03:09:41,922 INFO L226 Difference]: Without dead ends: 190 [2024-11-14 03:09:41,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 289 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=120, Invalid=588, Unknown=2, NotChecked=102, Total=812 [2024-11-14 03:09:41,925 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 294 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:41,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 508 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:09:41,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-14 03:09:41,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 187. [2024-11-14 03:09:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 163 states have (on average 1.4049079754601228) internal successors, (229), 164 states have internal predecessors, (229), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-14 03:09:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 269 transitions. [2024-11-14 03:09:41,952 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 269 transitions. Word has length 145 [2024-11-14 03:09:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:41,952 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 269 transitions. [2024-11-14 03:09:41,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 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 03:09:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 269 transitions. [2024-11-14 03:09:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 03:09:41,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:41,956 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 03:09:41,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-14 03:09:42,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:09:42,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:42,357 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:42,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash 182124470, now seen corresponding path program 1 times [2024-11-14 03:09:42,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:42,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [816931793] [2024-11-14 03:09:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:42,359 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 03:09:42,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:42,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:42,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:42,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:09:42,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:46,376 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-14 03:09:46,376 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 1 case distinctions, treesize of input 36 treesize of output 35 [2024-11-14 03:09:46,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:09:46,758 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 18 treesize of output 13 [2024-11-14 03:09:46,913 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 18 treesize of output 13 [2024-11-14 03:09:46,980 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 03:09:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 03:09:47,038 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:47,343 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_145 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_146 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_147 (Array (_ BitVec 32) (_ BitVec 32)))) (not (= (_ bv0 8) ((_ extract 7 0) (select (select (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_145) c_~var_1_8_Pointer~0.base v_ArrVal_146) c_~var_1_11_Pointer~0.base v_ArrVal_147) c_~var_1_12_Pointer~0.base) c_~var_1_12_Pointer~0.offset))))) is different from false [2024-11-14 03:09:47,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [816931793] [2024-11-14 03:09:47,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [816931793] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [476327175] [2024-11-14 03:09:47,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:47,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:09:47,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:09:47,581 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:09:47,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 03:09:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:48,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 03:09:48,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:50,340 INFO L349 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2024-11-14 03:09:50,341 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 1 case distinctions, treesize of input 17 treesize of output 25 [2024-11-14 03:09:50,716 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 27 treesize of output 20 [2024-11-14 03:09:50,885 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 27 treesize of output 20 [2024-11-14 03:09:51,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:09:51,237 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 27 treesize of output 15 [2024-11-14 03:09:51,510 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 03:09:51,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:51,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [476327175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:51,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:09:51,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 24 [2024-11-14 03:09:51,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112099953] [2024-11-14 03:09:51,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:51,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:09:51,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:51,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:09:51,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=696, Unknown=39, NotChecked=56, Total=930 [2024-11-14 03:09:51,516 INFO L87 Difference]: Start difference. First operand 187 states and 269 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 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 03:09:53,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:53,504 INFO L93 Difference]: Finished difference Result 431 states and 620 transitions. [2024-11-14 03:09:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:09:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 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 03:09:53,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:53,511 INFO L225 Difference]: With dead ends: 431 [2024-11-14 03:09:53,511 INFO L226 Difference]: Without dead ends: 247 [2024-11-14 03:09:53,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=151, Invalid=743, Unknown=40, NotChecked=58, Total=992 [2024-11-14 03:09:53,514 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 181 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:53,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 391 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:09:53,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-14 03:09:53,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 146. [2024-11-14 03:09:53,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 124 states have internal predecessors, (172), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:09:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 208 transitions. [2024-11-14 03:09:53,550 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 208 transitions. Word has length 147 [2024-11-14 03:09:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:53,551 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 208 transitions. [2024-11-14 03:09:53,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 9 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 03:09:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 208 transitions. [2024-11-14 03:09:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-14 03:09:53,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:53,555 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 03:09:53,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:53,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 03:09:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:09:53,956 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:53,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1581447837, now seen corresponding path program 1 times [2024-11-14 03:09:53,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:53,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870966067] [2024-11-14 03:09:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:53,958 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 03:09:53,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:53,960 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:53,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:54,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:09:54,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:54,410 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 03:09:54,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:54,410 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870966067] [2024-11-14 03:09:54,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870966067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:54,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:54,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:09:54,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685423041] [2024-11-14 03:09:54,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:54,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:09:54,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:54,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:09:54,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:09:54,412 INFO L87 Difference]: Start difference. First operand 146 states and 208 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 03:09:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:54,476 INFO L93 Difference]: Finished difference Result 292 states and 417 transitions. [2024-11-14 03:09:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:09:54,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 03:09:54,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:54,479 INFO L225 Difference]: With dead ends: 292 [2024-11-14 03:09:54,479 INFO L226 Difference]: Without dead ends: 149 [2024-11-14 03:09:54,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 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 03:09:54,480 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:54,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 677 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:09:54,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-14 03:09:54,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-14 03:09:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 127 states have (on average 1.3779527559055118) internal successors, (175), 127 states have internal predecessors, (175), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:09:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 211 transitions. [2024-11-14 03:09:54,503 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 211 transitions. Word has length 147 [2024-11-14 03:09:54,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:54,503 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 211 transitions. [2024-11-14 03:09:54,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 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 03:09:54,504 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 211 transitions. [2024-11-14 03:09:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:09:54,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:54,506 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 03:09:54,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:54,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:54,707 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:54,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:54,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1454679806, now seen corresponding path program 1 times [2024-11-14 03:09:54,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:54,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518501109] [2024-11-14 03:09:54,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:54,708 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 03:09:54,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:54,710 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:54,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:55,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:09:55,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:55,140 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 03:09:55,156 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 03:09:55,170 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 03:09:55,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:09:55,170 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:55,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518501109] [2024-11-14 03:09:55,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518501109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:55,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:09:55,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:09:55,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126409662] [2024-11-14 03:09:55,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:55,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:09:55,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:55,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:09:55,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:09:55,172 INFO L87 Difference]: Start difference. First operand 149 states and 211 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 03:09:55,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:55,725 INFO L93 Difference]: Finished difference Result 309 states and 439 transitions. [2024-11-14 03:09:55,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:09:55,726 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 03:09:55,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:55,728 INFO L225 Difference]: With dead ends: 309 [2024-11-14 03:09:55,729 INFO L226 Difference]: Without dead ends: 163 [2024-11-14 03:09:55,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 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 03:09:55,730 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 16 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:55,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 606 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:09:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-11-14 03:09:55,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 150. [2024-11-14 03:09:55,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.375) internal successors, (176), 128 states have internal predecessors, (176), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:09:55,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 212 transitions. [2024-11-14 03:09:55,751 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 212 transitions. Word has length 148 [2024-11-14 03:09:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:55,751 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 212 transitions. [2024-11-14 03:09:55,752 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 03:09:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2024-11-14 03:09:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:09:55,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:55,754 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 03:09:55,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-14 03:09:55,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:55,955 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:55,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:55,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1595228416, now seen corresponding path program 1 times [2024-11-14 03:09:55,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:09:55,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295087069] [2024-11-14 03:09:55,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:55,956 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 03:09:55,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:09:55,959 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:09:55,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 03:09:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:56,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-14 03:09:56,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:57,591 INFO L349 Elim1Store]: treesize reduction 18, result has 45.5 percent of original size [2024-11-14 03:09:57,592 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 1 case distinctions, treesize of input 31 treesize of output 34 [2024-11-14 03:09:57,645 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 03:09:57,682 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 68 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked. [2024-11-14 03:09:57,682 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:58,267 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2024-11-14 03:09:58,267 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 25 [2024-11-14 03:09:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-11-14 03:09:58,594 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:09:58,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295087069] [2024-11-14 03:09:58,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295087069] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:58,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:09:58,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2024-11-14 03:09:58,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190407099] [2024-11-14 03:09:58,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:58,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:09:58,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:09:58,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:09:58,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-14 03:09:58,596 INFO L87 Difference]: Start difference. First operand 150 states and 212 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:10:00,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:00,795 INFO L93 Difference]: Finished difference Result 293 states and 411 transitions. [2024-11-14 03:10:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:10:00,796 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-14 03:10:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:00,798 INFO L225 Difference]: With dead ends: 293 [2024-11-14 03:10:00,798 INFO L226 Difference]: Without dead ends: 146 [2024-11-14 03:10:00,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 270 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:10:00,800 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 179 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:00,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 737 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-14 03:10:00,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-14 03:10:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 131. [2024-11-14 03:10:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 109 states have (on average 1.348623853211009) internal successors, (147), 109 states have internal predecessors, (147), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-14 03:10:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 183 transitions. [2024-11-14 03:10:00,819 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 183 transitions. Word has length 148 [2024-11-14 03:10:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:00,820 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 183 transitions. [2024-11-14 03:10:00,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-14 03:10:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 183 transitions. [2024-11-14 03:10:00,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 03:10:00,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:00,822 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 03:10:00,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-14 03:10:01,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:10:01,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:01,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1234089784, now seen corresponding path program 1 times [2024-11-14 03:10:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:10:01,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566279764] [2024-11-14 03:10:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:01,027 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 03:10:01,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:10:01,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:10:01,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-14 03:10:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:01,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 03:10:01,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:03,421 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 03:10:04,428 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 03:10:05,213 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 03:10:05,979 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 03:10:06,575 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 03:10:07,073 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 03:10:07,401 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 03:10:07,674 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 03:10:07,934 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 03:10:08,194 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 03:10:08,534 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 25 treesize of output 23 [2024-11-14 03:10:08,703 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 25 treesize of output 23 [2024-11-14 03:10:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 580 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:10:08,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:08,986 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_303 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_303))) (bvsle ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset))) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))))) is different from false [2024-11-14 03:10:09,658 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:10:09,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566279764] [2024-11-14 03:10:09,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566279764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:09,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2006926840] [2024-11-14 03:10:09,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:09,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:10:09,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:10:09,662 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:10:09,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-14 03:10:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:11,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:10:11,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:14,357 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 03:10:15,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:16,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:16,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:17,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:17,491 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 03:10:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:10:17,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2006926840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:18,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245568883] [2024-11-14 03:10:18,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:18,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:10:18,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:10:18,198 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:10:18,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:10:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:18,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:10:18,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:10:22,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-14 03:10:23,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:23,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:10:24,834 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 72 treesize of output 56 [2024-11-14 03:10:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 292 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-14 03:10:25,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:10:25,738 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_9_Pointer~0.offset (_ BitVec 32))) (or (forall ((v_ArrVal_366 (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_~var_1_12_Pointer~0.base v_ArrVal_366) c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (not (fp.eq (let ((.cse1 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (let ((.cse2 (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))))) is different from false [2024-11-14 03:10:25,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245568883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:10:25,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:10:25,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 10] total 37 [2024-11-14 03:10:25,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065896252] [2024-11-14 03:10:25,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:10:25,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-14 03:10:25,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:10:25,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-14 03:10:25,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2091, Unknown=35, NotChecked=190, Total=2550 [2024-11-14 03:10:25,774 INFO L87 Difference]: Start difference. First operand 131 states and 183 transitions. Second operand has 38 states, 38 states have (on average 5.2368421052631575) internal successors, (199), 37 states have internal predecessors, (199), 19 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 19 states have call predecessors, (54), 19 states have call successors, (54) [2024-11-14 03:10:50,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:10:51,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:10:57,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:10:57,135 INFO L93 Difference]: Finished difference Result 693 states and 973 transitions. [2024-11-14 03:10:57,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-14 03:10:57,136 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.2368421052631575) internal successors, (199), 37 states have internal predecessors, (199), 19 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 19 states have call predecessors, (54), 19 states have call successors, (54) Word has length 149 [2024-11-14 03:10:57,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:10:57,139 INFO L225 Difference]: With dead ends: 693 [2024-11-14 03:10:57,140 INFO L226 Difference]: Without dead ends: 565 [2024-11-14 03:10:57,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1839 ImplicationChecksByTransitivity, 22.7s TimeCoverageRelationStatistics Valid=1726, Invalid=7177, Unknown=35, NotChecked=374, Total=9312 [2024-11-14 03:10:57,144 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 3202 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 2619 mSolverCounterSat, 348 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3202 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 2619 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:10:57,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3202 Valid, 1180 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 2619 Invalid, 15 Unknown, 0 Unchecked, 14.0s Time] [2024-11-14 03:10:57,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-14 03:10:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 222. [2024-11-14 03:10:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 180 states have (on average 1.3277777777777777) internal successors, (239), 181 states have internal predecessors, (239), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:10:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 305 transitions. [2024-11-14 03:10:57,232 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 305 transitions. Word has length 149 [2024-11-14 03:10:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:10:57,232 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 305 transitions. [2024-11-14 03:10:57,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.2368421052631575) internal successors, (199), 37 states have internal predecessors, (199), 19 states have call successors, (54), 19 states have call predecessors, (54), 19 states have return successors, (54), 19 states have call predecessors, (54), 19 states have call successors, (54) [2024-11-14 03:10:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 305 transitions. [2024-11-14 03:10:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:10:57,235 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:10:57,235 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 03:10:57,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:57,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:10:57,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-14 03:10:57,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:10:57,840 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:10:57,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:10:57,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1404703283, now seen corresponding path program 1 times [2024-11-14 03:10:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:10:57,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599931000] [2024-11-14 03:10:57,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:10:57,841 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 03:10:57,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:10:57,843 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:10:57,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-14 03:10:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:10:58,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-14 03:10:58,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:00,997 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 03:11:02,389 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 03:11:03,509 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 03:11:05,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:06,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:06,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:07,536 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 16 treesize of output 11 [2024-11-14 03:11:08,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-14 03:11:08,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:09,131 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 16 treesize of output 11 [2024-11-14 03:11:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:11:09,660 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:10,028 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_408 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_408))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))))) is different from false [2024-11-14 03:11:10,137 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_407 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_408 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_407) c_~var_1_11_Pointer~0.base v_ArrVal_408))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))))) is different from false [2024-11-14 03:11:11,849 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_406 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_407 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_408 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_405 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_405))) (let ((.cse4 (store (store (store .cse5 c_~var_1_1_Pointer~0.base v_ArrVal_406) c_~var_1_8_Pointer~0.base v_ArrVal_407) c_~var_1_11_Pointer~0.base v_ArrVal_408))) (let ((.cse2 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse4 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse3 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse4 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))) (.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse5 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse5 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvsle .cse0 .cse1)) (not (bvsle .cse2 .cse3)) (not (bvugt .cse2 (bvadd (select (select .cse4 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) .cse3))) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse5 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset))))))))) is different from false [2024-11-14 03:11:12,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599931000] [2024-11-14 03:11:12,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599931000] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1699346099] [2024-11-14 03:11:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:12,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:12,058 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:12,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-14 03:11:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:13,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:11:13,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:16,131 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 29 treesize of output 35 [2024-11-14 03:11:16,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2024-11-14 03:11:17,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 38 [2024-11-14 03:11:18,183 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 03:11:18,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:11:18,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1699346099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:18,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:11:18,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19] total 29 [2024-11-14 03:11:18,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310311771] [2024-11-14 03:11:18,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:18,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:11:18,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:18,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:11:18,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=1206, Unknown=14, NotChecked=222, Total=1640 [2024-11-14 03:11:18,185 INFO L87 Difference]: Start difference. First operand 222 states and 305 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 03:11:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:26,255 INFO L93 Difference]: Finished difference Result 505 states and 697 transitions. [2024-11-14 03:11:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:11:26,256 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 03:11:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:26,259 INFO L225 Difference]: With dead ends: 505 [2024-11-14 03:11:26,259 INFO L226 Difference]: Without dead ends: 286 [2024-11-14 03:11:26,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=250, Invalid=1818, Unknown=14, NotChecked=270, Total=2352 [2024-11-14 03:11:26,261 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 255 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 974 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:26,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 855 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 974 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-14 03:11:26,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-14 03:11:26,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 242. [2024-11-14 03:11:26,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 200 states have (on average 1.345) internal successors, (269), 201 states have internal predecessors, (269), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:11:26,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 335 transitions. [2024-11-14 03:11:26,322 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 335 transitions. Word has length 151 [2024-11-14 03:11:26,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:26,323 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 335 transitions. [2024-11-14 03:11:26,323 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 03:11:26,323 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 335 transitions. [2024-11-14 03:11:26,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:11:26,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:26,326 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 03:11:26,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-14 03:11:26,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-14 03:11:26,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:26,727 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:11:26,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:26,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1991509297, now seen corresponding path program 1 times [2024-11-14 03:11:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:26,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157993242] [2024-11-14 03:11:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:26,728 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:11:26,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:26,730 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:26,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:27,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:11:27,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:30,529 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 03:11:31,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 42 [2024-11-14 03:11:31,826 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 57 treesize of output 42 [2024-11-14 03:11:32,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:32,846 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 57 treesize of output 42 [2024-11-14 03:11:33,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:33,157 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 03:11:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:11:33,250 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:33,744 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:11:33,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157993242] [2024-11-14 03:11:33,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157993242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:33,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2145477180] [2024-11-14 03:11:33,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:33,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:33,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:11:33,746 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:11:33,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:11:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:35,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:11:35,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:38,862 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 03:11:40,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:40,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:41,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:42,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:42,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:42,760 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 03:11:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:11:42,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:43,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2145477180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841564315] [2024-11-14 03:11:43,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:43,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:43,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:43,173 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:43,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:11:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:43,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:11:43,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:47,240 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 03:11:48,546 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 57 treesize of output 42 [2024-11-14 03:11:49,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:49,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:50,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:11:50,851 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 57 treesize of output 42 [2024-11-14 03:11:51,239 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:11:51,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:11:51,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841564315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:51,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:11:51,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2024-11-14 03:11:51,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249741663] [2024-11-14 03:11:51,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:11:51,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-14 03:11:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:11:51,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-14 03:11:51,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1271, Unknown=37, NotChecked=0, Total=1560 [2024-11-14 03:11:51,640 INFO L87 Difference]: Start difference. First operand 242 states and 335 transitions. Second operand has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 33 states have internal predecessors, (183), 15 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:11:57,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:11:57,549 INFO L93 Difference]: Finished difference Result 582 states and 812 transitions. [2024-11-14 03:11:57,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:11:57,557 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 33 states have internal predecessors, (183), 15 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) Word has length 151 [2024-11-14 03:11:57,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:11:57,560 INFO L225 Difference]: With dead ends: 582 [2024-11-14 03:11:57,560 INFO L226 Difference]: Without dead ends: 343 [2024-11-14 03:11:57,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 511 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=380, Invalid=1745, Unknown=37, NotChecked=0, Total=2162 [2024-11-14 03:11:57,563 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 1454 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:11:57,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 844 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1632 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-14 03:11:57,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-14 03:11:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 254. [2024-11-14 03:11:57,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 212 states have (on average 1.3443396226415094) internal successors, (285), 213 states have internal predecessors, (285), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:11:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 351 transitions. [2024-11-14 03:11:57,637 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 351 transitions. Word has length 151 [2024-11-14 03:11:57,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:11:57,639 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 351 transitions. [2024-11-14 03:11:57,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.382352941176471) internal successors, (183), 33 states have internal predecessors, (183), 15 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (54), 15 states have call predecessors, (54), 15 states have call successors, (54) [2024-11-14 03:11:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 351 transitions. [2024-11-14 03:11:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:11:57,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:11:57,646 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 03:11:57,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:57,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:11:58,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 03:11:58,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:11:58,247 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:11:58,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:11:58,248 INFO L85 PathProgramCache]: Analyzing trace with hash 498019665, now seen corresponding path program 1 times [2024-11-14 03:11:58,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:11:58,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207067976] [2024-11-14 03:11:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:11:58,248 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 03:11:58,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:11:58,250 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:58,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:11:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:58,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 03:11:58,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:01,338 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 03:12:02,803 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 03:12:03,961 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 03:12:05,367 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 16 treesize of output 11 [2024-11-14 03:12:06,330 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 16 treesize of output 11 [2024-11-14 03:12:07,142 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 16 treesize of output 11 [2024-11-14 03:12:07,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:08,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:08,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:09,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:09,475 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 37 treesize of output 36 [2024-11-14 03:12:09,770 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 37 treesize of output 36 [2024-11-14 03:12:09,999 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 37 treesize of output 36 [2024-11-14 03:12:10,133 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 52 treesize of output 24 [2024-11-14 03:12:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:12:10,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:10,392 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_586 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_586))) (bvugt ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset))))) is different from false [2024-11-14 03:12:10,436 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_585 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_586 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_585) c_~var_1_11_Pointer~0.base v_ArrVal_586))) (bvugt ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset))) (bvadd (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))))) is different from false [2024-11-14 03:12:10,989 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_585 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_586 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_583 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_584 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_583))) (or (let ((.cse0 (store (store (store .cse1 c_~var_1_1_Pointer~0.base v_ArrVal_584) c_~var_1_8_Pointer~0.base v_ArrVal_585) c_~var_1_11_Pointer~0.base v_ArrVal_586))) (bvugt ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset))) (bvadd (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))) (not (bvugt ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset))) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (select (select .cse1 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset))))))) is different from false [2024-11-14 03:12:11,089 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:12:11,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207067976] [2024-11-14 03:12:11,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207067976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:11,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1801758597] [2024-11-14 03:12:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:11,090 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:12:11,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:12:11,093 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:12:11,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-14 03:12:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:13,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:12:13,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:16,734 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 45 treesize of output 42 [2024-11-14 03:12:17,077 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 45 treesize of output 42 [2024-11-14 03:12:17,437 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 45 treesize of output 42 [2024-11-14 03:12:18,185 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 03:12:18,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:12:18,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1801758597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:18,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:12:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [22] total 32 [2024-11-14 03:12:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473346343] [2024-11-14 03:12:18,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:18,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:12:18,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:12:18,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:12:18,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1198, Unknown=25, NotChecked=222, Total=1640 [2024-11-14 03:12:18,188 INFO L87 Difference]: Start difference. First operand 254 states and 351 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 03:12:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:22,212 INFO L93 Difference]: Finished difference Result 542 states and 750 transitions. [2024-11-14 03:12:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-14 03:12:22,214 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 03:12:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:22,216 INFO L225 Difference]: With dead ends: 542 [2024-11-14 03:12:22,216 INFO L226 Difference]: Without dead ends: 291 [2024-11-14 03:12:22,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=220, Invalid=1327, Unknown=25, NotChecked=234, Total=1806 [2024-11-14 03:12:22,217 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 247 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:22,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 658 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-14 03:12:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-14 03:12:22,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 254. [2024-11-14 03:12:22,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 212 states have (on average 1.3349056603773586) internal successors, (283), 213 states have internal predecessors, (283), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:12:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 349 transitions. [2024-11-14 03:12:22,303 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 349 transitions. Word has length 151 [2024-11-14 03:12:22,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:22,307 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 349 transitions. [2024-11-14 03:12:22,308 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 03:12:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 349 transitions. [2024-11-14 03:12:22,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:12:22,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:22,311 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 03:12:22,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-14 03:12:22,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:22,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:22,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:22,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:22,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1286913583, now seen corresponding path program 1 times [2024-11-14 03:12:22,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:12:22,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536573219] [2024-11-14 03:12:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:22,716 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 03:12:22,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:12:22,718 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:22,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:23,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-14 03:12:23,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:25,890 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 03:12:27,390 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 03:12:28,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 03:12:29,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:30,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:31,716 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 16 treesize of output 11 [2024-11-14 03:12:32,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-14 03:12:32,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:12:33,485 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 16 treesize of output 11 [2024-11-14 03:12:34,102 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 16 treesize of output 11 [2024-11-14 03:12:34,618 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 38 treesize of output 37 [2024-11-14 03:12:34,899 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 38 treesize of output 37 [2024-11-14 03:12:35,142 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 38 treesize of output 37 [2024-11-14 03:12:35,421 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 68 treesize of output 32 [2024-11-14 03:12:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:12:35,537 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:35,976 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_658 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_658))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvsle .cse0 .cse1)) (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))))))) is different from false [2024-11-14 03:12:36,103 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_657 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_658 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_657) c_~var_1_11_Pointer~0.base v_ArrVal_658))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse1 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse2 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvugt .cse0 (bvadd .cse1 (select (select .cse2 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)))) (not (bvsle .cse0 .cse1)))))) is different from false [2024-11-14 03:12:36,249 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_656 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_657 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_658 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_656) c_~var_1_8_Pointer~0.base v_ArrVal_657) c_~var_1_11_Pointer~0.base v_ArrVal_658))) (let ((.cse0 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset)))) (.cse2 ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse1 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))))) (or (not (bvugt .cse0 (bvadd (select (select .cse1 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) .cse2))) (not (bvsle .cse0 .cse2)))))) is different from false [2024-11-14 03:12:38,014 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:12:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536573219] [2024-11-14 03:12:38,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536573219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:38,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1773721230] [2024-11-14 03:12:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:38,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:12:38,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:12:38,017 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:12:38,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-14 03:12:40,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:40,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:12:40,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:43,276 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 31 treesize of output 32 [2024-11-14 03:12:43,556 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 31 treesize of output 32 [2024-11-14 03:12:43,845 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 31 treesize of output 32 [2024-11-14 03:12:44,307 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 61 treesize of output 29 [2024-11-14 03:12:44,611 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 03:12:44,611 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:12:44,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1773721230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:44,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:12:44,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [23] total 31 [2024-11-14 03:12:44,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421030138] [2024-11-14 03:12:44,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:44,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:12:44,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:12:44,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:12:44,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1153, Unknown=16, NotChecked=222, Total=1640 [2024-11-14 03:12:44,613 INFO L87 Difference]: Start difference. First operand 254 states and 349 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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 03:12:48,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:48,606 INFO L93 Difference]: Finished difference Result 542 states and 746 transitions. [2024-11-14 03:12:48,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:12:48,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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 03:12:48,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:48,609 INFO L225 Difference]: With dead ends: 542 [2024-11-14 03:12:48,609 INFO L226 Difference]: Without dead ends: 291 [2024-11-14 03:12:48,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=276, Invalid=1280, Unknown=16, NotChecked=234, Total=1806 [2024-11-14 03:12:48,611 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 175 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:48,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 522 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-14 03:12:48,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-14 03:12:48,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 254. [2024-11-14 03:12:48,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 212 states have (on average 1.330188679245283) internal successors, (282), 213 states have internal predecessors, (282), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:12:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 348 transitions. [2024-11-14 03:12:48,664 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 348 transitions. Word has length 151 [2024-11-14 03:12:48,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:48,665 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 348 transitions. [2024-11-14 03:12:48,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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 03:12:48,665 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 348 transitions. [2024-11-14 03:12:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:12:48,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:48,667 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 03:12:48,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-14 03:12:48,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:49,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:49,068 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:49,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:49,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1873719597, now seen corresponding path program 1 times [2024-11-14 03:12:49,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:12:49,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551166096] [2024-11-14 03:12:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:49,068 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 03:12:49,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:12:49,070 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:12:49,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-14 03:12:49,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:49,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-14 03:12:49,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:55,474 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 03:12:57,428 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 03:12:59,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:13:02,984 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 26 [2024-11-14 03:13:05,516 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 37 treesize of output 36 [2024-11-14 03:13:06,683 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 37 treesize of output 36 [2024-11-14 03:13:07,824 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 37 treesize of output 36 [2024-11-14 03:13:08,983 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 37 treesize of output 36 [2024-11-14 03:13:10,023 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 37 treesize of output 36 [2024-11-14 03:13:10,684 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2024-11-14 03:13:19,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 92 [2024-11-14 03:13:20,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 92 [2024-11-14 03:13:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 563 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-14 03:13:23,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:13:25,244 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_730))) (= (bvadd (bvneg (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (select (select .cse0 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset)) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset)))) is different from false [2024-11-14 03:13:25,341 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_730 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_729 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_729) c_~var_1_11_Pointer~0.base v_ArrVal_730))) (= (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvneg (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (select (select .cse0 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset)) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset)))) is different from false [2024-11-14 03:13:35,393 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_730 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_729 (Array (_ BitVec 32) (_ BitVec 32))) (~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_726 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_726))) (let ((.cse2 (bvadd ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse3 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (select (select .cse3 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (bvneg (select (select .cse3 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) (select (select .cse3 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset)))) (let ((.cse1 (store .cse3 c_~var_1_1_Pointer~0.base (store (select .cse3 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse2)))) (or (let ((.cse0 (store (store .cse1 c_~var_1_8_Pointer~0.base v_ArrVal_729) c_~var_1_11_Pointer~0.base v_ArrVal_730))) (= (bvadd (bvneg (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) (select (select .cse0 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset) (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))) (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset))) (not (bvuge (select (select .cse1 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset) .cse2))))))) is different from false [2024-11-14 03:13:35,960 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:13:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [551166096] [2024-11-14 03:13:35,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [551166096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:13:35,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [85577830] [2024-11-14 03:13:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:13:35,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:13:35,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:13:35,964 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:13:35,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2024-11-14 03:13:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:13:38,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-14 03:13:38,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:13:44,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2024-11-14 03:13:45,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 46 [2024-11-14 03:13:46,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 46 [2024-11-14 03:13:48,393 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 03:13:48,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:13:48,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [85577830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:48,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:13:48,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [38] total 45 [2024-11-14 03:13:48,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419521612] [2024-11-14 03:13:48,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:48,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:13:48,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:13:48,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:13:48,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=2642, Unknown=72, NotChecked=324, Total=3306 [2024-11-14 03:13:48,397 INFO L87 Difference]: Start difference. First operand 254 states and 348 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 03:13:54,413 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 [] [2024-11-14 03:13:56,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:13:58,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:00,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:03,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:05,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:07,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:09,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:11,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:14:18,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:14:18,125 INFO L93 Difference]: Finished difference Result 561 states and 770 transitions. [2024-11-14 03:14:18,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:14:18,127 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 03:14:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:14:18,130 INFO L225 Difference]: With dead ends: 561 [2024-11-14 03:14:18,130 INFO L226 Difference]: Without dead ends: 310 [2024-11-14 03:14:18,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=350, Invalid=3490, Unknown=78, NotChecked=372, Total=4290 [2024-11-14 03:14:18,137 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 176 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1188 mSolverCounterSat, 1 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 1201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1188 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:14:18,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1098 Invalid, 1201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1188 Invalid, 12 Unknown, 0 Unchecked, 25.6s Time] [2024-11-14 03:14:18,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-14 03:14:18,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 266. [2024-11-14 03:14:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 224 states have (on average 1.3392857142857142) internal successors, (300), 225 states have internal predecessors, (300), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:14:18,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 366 transitions. [2024-11-14 03:14:18,202 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 366 transitions. Word has length 151 [2024-11-14 03:14:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:14:18,202 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 366 transitions. [2024-11-14 03:14:18,202 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 03:14:18,202 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 366 transitions. [2024-11-14 03:14:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:14:18,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:18,204 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 03:14:18,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-14 03:14:18,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2024-11-14 03:14:18,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:14:18,605 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:14:18,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:18,605 INFO L85 PathProgramCache]: Analyzing trace with hash 778966280, now seen corresponding path program 1 times [2024-11-14 03:14:18,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:14:18,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680950036] [2024-11-14 03:14:18,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:18,606 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 03:14:18,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:14:18,608 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:14:18,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:14:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:19,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-14 03:14:19,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:14:25,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-14 03:14:27,823 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 03:14:30,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:14:34,121 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 26 [2024-11-14 03:14:36,911 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 37 treesize of output 36 [2024-11-14 03:14:38,272 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 37 treesize of output 36 [2024-11-14 03:14:39,552 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 37 treesize of output 36 [2024-11-14 03:14:41,035 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 37 treesize of output 36 [2024-11-14 03:14:42,668 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 37 treesize of output 36 [2024-11-14 03:14:43,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2024-11-14 03:14:45,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 74 [2024-11-14 03:14:46,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 74 [2024-11-14 03:14:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 5 proven. 563 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-14 03:14:48,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:14:51,292 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_802 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_803 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_802) c_~var_1_11_Pointer~0.base v_ArrVal_803))) (= (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset) (bvadd (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (select (select .cse0 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset))) (bvneg (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)))))) is different from false [2024-11-14 03:14:55,192 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_1_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_802 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_803 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_799 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_799))) (let ((.cse2 (bvadd (select (select .cse3 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (select (select .cse3 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset) (bvneg (select (select .cse3 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse3 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))) (let ((.cse1 (store .cse3 c_~var_1_1_Pointer~0.base (store (select .cse3 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset .cse2)))) (or (let ((.cse0 (store (store .cse1 c_~var_1_8_Pointer~0.base v_ArrVal_802) c_~var_1_11_Pointer~0.base v_ArrVal_803))) (= (select (select .cse0 c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset) (bvadd (select (select .cse0 c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset) (select (select .cse0 c_~var_1_6_Pointer~0.base) c_~var_1_6_Pointer~0.offset) (bvneg (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset)) ((_ zero_extend 16) ((_ extract 15 0) (select (select .cse0 c_~var_1_4_Pointer~0.base) c_~var_1_4_Pointer~0.offset)))))) (bvuge (select (select .cse1 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset) .cse2)))))) is different from false [2024-11-14 03:14:55,822 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:14:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680950036] [2024-11-14 03:14:55,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680950036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:14:55,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [950292690] [2024-11-14 03:14:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:55,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:14:55,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:14:55,827 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:14:55,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2024-11-14 03:14:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:57,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-14 03:14:57,414 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:02,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2024-11-14 03:15:03,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 46 [2024-11-14 03:15:04,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 46 [2024-11-14 03:15:06,305 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 03:15:06,305 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:15:06,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [950292690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:15:06,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:15:06,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [38] total 45 [2024-11-14 03:15:06,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905465177] [2024-11-14 03:15:06,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:15:06,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:15:06,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:15:06,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:15:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=2775, Unknown=36, NotChecked=218, Total=3306 [2024-11-14 03:15:06,308 INFO L87 Difference]: Start difference. First operand 266 states and 366 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 03:15:11,711 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 [] [2024-11-14 03:15:13,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:15,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:17,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:20,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:22,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:24,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:26,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:28,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:15:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:15:32,971 INFO L93 Difference]: Finished difference Result 577 states and 793 transitions. [2024-11-14 03:15:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-14 03:15:32,973 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 03:15:32,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:15:32,976 INFO L225 Difference]: With dead ends: 577 [2024-11-14 03:15:32,976 INFO L226 Difference]: Without dead ends: 314 [2024-11-14 03:15:32,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=364, Invalid=3638, Unknown=38, NotChecked=250, Total=4290 [2024-11-14 03:15:32,979 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 175 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 1083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:15:32,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1046 Invalid, 1083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1071 Invalid, 11 Unknown, 0 Unchecked, 24.4s Time] [2024-11-14 03:15:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-14 03:15:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 258. [2024-11-14 03:15:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.3287037037037037) internal successors, (287), 217 states have internal predecessors, (287), 33 states have call successors, (33), 8 states have call predecessors, (33), 8 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-14 03:15:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 353 transitions. [2024-11-14 03:15:33,060 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 353 transitions. Word has length 151 [2024-11-14 03:15:33,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:15:33,060 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 353 transitions. [2024-11-14 03:15:33,061 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 03:15:33,061 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 353 transitions. [2024-11-14 03:15:33,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:15:33,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:15:33,064 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 03:15:33,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2024-11-14 03:15:33,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2024-11-14 03:15:33,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:15:33,465 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:15:33,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:15:33,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1751958652, now seen corresponding path program 1 times [2024-11-14 03:15:33,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:15:33,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280647291] [2024-11-14 03:15:33,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:33,466 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 03:15:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:15:33,471 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:15:33,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-14 03:15:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:34,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:15:34,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:38,878 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 03:15:40,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:41,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:42,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:42,925 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 57 treesize of output 42 [2024-11-14 03:15:43,305 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 57 treesize of output 42 [2024-11-14 03:15:43,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:43,872 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 03:15:43,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:15:43,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:15:44,242 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_868 (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_~var_1_11_Pointer~0.base v_ArrVal_868) c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) is different from false [2024-11-14 03:15:44,691 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:15:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280647291] [2024-11-14 03:15:44,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280647291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:15:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178208057] [2024-11-14 03:15:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:44,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:15:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:15:44,694 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:15:44,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-14 03:15:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:46,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:15:46,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:15:51,926 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 03:15:53,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:54,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:55,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:56,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:56,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:57,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:15:57,723 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 03:15:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:15:57,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:15:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [178208057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:15:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142896396] [2024-11-14 03:15:58,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:15:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:15:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:15:58,720 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:15:58,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-14 03:15:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:15:59,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-14 03:15:59,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:16:01,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:16:01,749 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 33 treesize of output 24 [2024-11-14 03:16:01,984 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 03:16:02,152 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 03:16:02,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:16:02,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142896396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:16:02,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:16:02,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 13] total 30 [2024-11-14 03:16:02,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564762688] [2024-11-14 03:16:02,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:16:02,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:16:02,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:16:02,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:16:02,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=1076, Unknown=51, NotChecked=72, Total=1482 [2024-11-14 03:16:02,154 INFO L87 Difference]: Start difference. First operand 258 states and 353 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:16:04,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:16:04,446 INFO L93 Difference]: Finished difference Result 617 states and 843 transitions. [2024-11-14 03:16:04,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:16:04,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:16:04,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:16:04,450 INFO L225 Difference]: With dead ends: 617 [2024-11-14 03:16:04,450 INFO L226 Difference]: Without dead ends: 362 [2024-11-14 03:16:04,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 480 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=295, Invalid=1140, Unknown=51, NotChecked=74, Total=1560 [2024-11-14 03:16:04,452 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 248 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:16:04,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 313 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-14 03:16:04,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-14 03:16:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 359. [2024-11-14 03:16:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 309 states have (on average 1.3333333333333333) internal successors, (412), 311 states have internal predecessors, (412), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:16:04,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 490 transitions. [2024-11-14 03:16:04,538 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 490 transitions. Word has length 151 [2024-11-14 03:16:04,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:16:04,539 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 490 transitions. [2024-11-14 03:16:04,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:16:04,539 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 490 transitions. [2024-11-14 03:16:04,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:16:04,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:04,541 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 03:16:04,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-14 03:16:04,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2024-11-14 03:16:04,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2024-11-14 03:16:05,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:16:05,142 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:16:05,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1841944066, now seen corresponding path program 1 times [2024-11-14 03:16:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:16:05,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304799622] [2024-11-14 03:16:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:05,143 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 03:16:05,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:16:05,146 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:16:05,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:16:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:05,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:16:05,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:16:11,847 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 57 treesize of output 42 [2024-11-14 03:16:12,382 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 57 treesize of output 42 [2024-11-14 03:16:12,989 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 57 treesize of output 42 [2024-11-14 03:16:13,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:16:13,989 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 103 treesize of output 59 [2024-11-14 03:16:14,308 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 96 treesize of output 74 [2024-11-14 03:16:14,766 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 03:16:15,195 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:16:15,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:16:15,640 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_962 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_962))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-14 03:16:15,701 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_962 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_166| (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_166|)) |c_ULTIMATE.start_step_#t~ite31#1|)) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_166|)) c_~var_1_11_Pointer~0.base v_ArrVal_962))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))))) is different from false [2024-11-14 03:16:15,737 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_962 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_166| (_ BitVec 32))) (or (let ((.cse1 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_166|)) c_~var_1_11_Pointer~0.base v_ArrVal_962))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_166|)) (let ((.cse3 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from false [2024-11-14 03:16:15,967 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_962 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_166| (_ BitVec 32)) (v_ArrVal_959 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_959))) (or (let ((.cse1 (store (store .cse3 c_~var_1_8_Pointer~0.base (store (select .cse3 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_166|)) c_~var_1_11_Pointer~0.base v_ArrVal_962))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_166|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_166|)) (let ((.cse4 (select (select .cse3 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)))))))) is different from false [2024-11-14 03:16:16,102 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:16:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304799622] [2024-11-14 03:16:16,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1304799622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:16:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1856858714] [2024-11-14 03:16:16,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:16,102 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:16:16,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:16:16,104 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:16:16,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-14 03:16:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:16:18,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-14 03:16:18,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:16:26,635 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 03:16:29,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:16:30,942 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 81 treesize of output 65 [2024-11-14 03:16:32,240 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 81 treesize of output 65 [2024-11-14 03:16:33,844 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 120 treesize of output 92 [2024-11-14 03:16:34,753 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 03:16:35,990 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 174 treesize of output 133 [2024-11-14 03:16:36,939 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 169 treesize of output 73 [2024-11-14 03:16:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:16:37,155 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:16:38,345 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_174| (_ BitVec 32)) (v_ArrVal_997 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_174|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_174|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_174|))) (.cse1 (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_174|)))) (or (not (fp.geq (let ((.cse0 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2)) (not (= .cse2 |c_ULTIMATE.start_step_#t~ite31#1|)) (let ((.cse4 (store .cse1 c_~var_1_11_Pointer~0.base v_ArrVal_997))) (fp.eq (let ((.cse3 (select (select .cse4 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (let ((.cse5 (select (select .cse4 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))))))) is different from false [2024-11-14 03:16:38,431 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_174| (_ BitVec 32)) (v_ArrVal_997 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_174|))) (.cse2 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_174|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_174|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_174|)))) (or (not (fp.geq (let ((.cse0 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2)) (let ((.cse4 (store .cse1 c_~var_1_11_Pointer~0.base v_ArrVal_997))) (fp.eq (let ((.cse3 (select (select .cse4 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) (let ((.cse5 (select (select .cse4 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (not (= .cse2 (let ((.cse6 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse6) ((_ extract 30 23) .cse6) ((_ extract 22 0) .cse6)))))))) is different from false [2024-11-14 03:16:40,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1856858714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:16:40,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456459468] [2024-11-14 03:16:40,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:40,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:16:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:16:40,181 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:16:40,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-14 03:17:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:00,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:17:00,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:03,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 35 [2024-11-14 03:17:03,947 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 71 treesize of output 55 [2024-11-14 03:17:04,809 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 105 treesize of output 45 [2024-11-14 03:17:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 18 proven. 33 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:17:05,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:06,016 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1026 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1026))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) (forall ((currentRoundingMode RoundingMode)) (not (fp.gt ((_ to_fp 8 24) currentRoundingMode (/ 5127.0 40.0)) |c_ULTIMATE.start_step_#t~mem37#1|)))) is different from false [2024-11-14 03:17:06,042 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1026 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1026))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) (forall ((currentRoundingMode RoundingMode)) (not (fp.gt ((_ to_fp 8 24) currentRoundingMode (/ 5127.0 40.0)) (let ((.cse3 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from false [2024-11-14 03:17:06,163 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_180| (_ BitVec 32)) (~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1026 (Array (_ BitVec 32) (_ BitVec 32))) (currentRoundingMode RoundingMode)) (let ((.cse3 (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_180|)))) (or (let ((.cse1 (store .cse3 c_~var_1_11_Pointer~0.base v_ArrVal_1026))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (fp.gt ((_ to_fp 8 24) currentRoundingMode (/ 5127.0 40.0)) (let ((.cse4 (select (select .cse3 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (not (= |c_ULTIMATE.start_step_#t~ite31#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_180|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_180|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_180|))))))) is different from false [2024-11-14 03:17:06,379 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_180| (_ BitVec 32)) (~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1026 (Array (_ BitVec 32) (_ BitVec 32))) (currentRoundingMode RoundingMode)) (let ((.cse3 (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_180|)))) (or (let ((.cse1 (store .cse3 c_~var_1_11_Pointer~0.base v_ArrVal_1026))) (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (not (fp.gt ((_ to_fp 8 24) currentRoundingMode (/ 5127.0 40.0)) (let ((.cse4 (select (select .cse3 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (not (= (let ((.cse5 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_180|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_180|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_180|))))))) is different from false [2024-11-14 03:17:06,488 INFO L349 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2024-11-14 03:17:06,488 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 188 treesize of output 132 [2024-11-14 03:17:06,510 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-14 03:17:06,510 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 268 treesize of output 172 [2024-11-14 03:17:06,545 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:17:06,545 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 114 treesize of output 98 [2024-11-14 03:17:10,305 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 03:17:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456459468] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:10,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:10,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [18, 23, 14] total 57 [2024-11-14 03:17:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749063802] [2024-11-14 03:17:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:17:10,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:17:10,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:10,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:17:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=400, Invalid=2886, Unknown=60, NotChecked=1210, Total=4556 [2024-11-14 03:17:10,307 INFO L87 Difference]: Start difference. First operand 359 states and 490 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 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 03:17:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:32,875 INFO L93 Difference]: Finished difference Result 793 states and 1084 transitions. [2024-11-14 03:17:32,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:17:32,876 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 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 03:17:32,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:32,879 INFO L225 Difference]: With dead ends: 793 [2024-11-14 03:17:32,879 INFO L226 Difference]: Without dead ends: 437 [2024-11-14 03:17:32,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 601 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 33.8s TimeCoverageRelationStatistics Valid=513, Invalid=3882, Unknown=67, NotChecked=1390, Total=5852 [2024-11-14 03:17:32,883 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 323 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 992 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:32,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 777 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 629 Invalid, 0 Unknown, 992 Unchecked, 3.2s Time] [2024-11-14 03:17:32,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-14 03:17:32,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 406. [2024-11-14 03:17:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 356 states have (on average 1.3342696629213484) internal successors, (475), 358 states have internal predecessors, (475), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:17:32,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 553 transitions. [2024-11-14 03:17:32,958 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 553 transitions. Word has length 151 [2024-11-14 03:17:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:32,959 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 553 transitions. [2024-11-14 03:17:32,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 14 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 03:17:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 553 transitions. [2024-11-14 03:17:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:17:32,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:32,961 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 03:17:32,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-14 03:17:33,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-14 03:17:33,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:33,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:33,562 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:33,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1441514187, now seen corresponding path program 1 times [2024-11-14 03:17:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991032534] [2024-11-14 03:17:33,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:33,563 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 03:17:33,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:33,565 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:33,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:34,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-14 03:17:34,222 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:34,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:17:36,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:17:38,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:17:39,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:17:41,136 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 16 treesize of output 11 [2024-11-14 03:17:42,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:17:43,758 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 23 treesize of output 21 [2024-11-14 03:17:44,432 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 23 treesize of output 21 [2024-11-14 03:17:45,060 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 23 treesize of output 21 [2024-11-14 03:17:45,764 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 23 treesize of output 21 [2024-11-14 03:17:46,437 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 23 treesize of output 21 [2024-11-14 03:17:46,975 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 26 [2024-11-14 03:17:47,222 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 26 [2024-11-14 03:17:47,449 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 03:17:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:17:47,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:48,696 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:48,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991032534] [2024-11-14 03:17:48,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991032534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:48,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [924227366] [2024-11-14 03:17:48,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:48,697 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:48,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:17:48,699 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:17:48,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-14 03:17:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:50,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:17:50,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:53,110 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 20 treesize of output 18 [2024-11-14 03:17:53,352 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 20 treesize of output 18 [2024-11-14 03:17:53,582 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 26 treesize of output 10 [2024-11-14 03:17:53,589 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 03:17:53,589 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:17:53,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [924227366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:17:53,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:17:53,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 28 [2024-11-14 03:17:53,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157927985] [2024-11-14 03:17:53,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:17:53,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:17:53,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:53,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:17:53,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=976, Unknown=11, NotChecked=0, Total=1190 [2024-11-14 03:17:53,591 INFO L87 Difference]: Start difference. First operand 406 states and 553 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:17:55,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:55,247 INFO L93 Difference]: Finished difference Result 886 states and 1210 transitions. [2024-11-14 03:17:55,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:17:55,248 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:17:55,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:55,252 INFO L225 Difference]: With dead ends: 886 [2024-11-14 03:17:55,253 INFO L226 Difference]: Without dead ends: 483 [2024-11-14 03:17:55,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=216, Invalid=1033, Unknown=11, NotChecked=0, Total=1260 [2024-11-14 03:17:55,255 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 219 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:55,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 375 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:17:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-14 03:17:55,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 452. [2024-11-14 03:17:55,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 402 states have (on average 1.3333333333333333) internal successors, (536), 404 states have internal predecessors, (536), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:17:55,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 614 transitions. [2024-11-14 03:17:55,347 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 614 transitions. Word has length 151 [2024-11-14 03:17:55,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:55,348 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 614 transitions. [2024-11-14 03:17:55,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:17:55,349 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 614 transitions. [2024-11-14 03:17:55,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:17:55,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:55,351 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, 1, 1] [2024-11-14 03:17:55,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:55,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-14 03:17:55,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:55,752 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:55,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:55,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1623089348, now seen corresponding path program 1 times [2024-11-14 03:17:55,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:55,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361588969] [2024-11-14 03:17:55,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:55,754 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 03:17:55,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:55,756 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:17:55,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2024-11-14 03:17:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:56,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:17:56,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:00,942 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 03:18:02,029 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 57 treesize of output 42 [2024-11-14 03:18:02,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:03,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:03,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:04,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:04,375 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 03:18:04,493 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:18:04,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:04,930 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1126 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1125 (Array (_ BitVec 32) (_ BitVec 32)))) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 5127.0 40.0)) (let ((.cse0 (select (select (store (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_1125) c_~var_1_8_Pointer~0.base v_ArrVal_1126) c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))) is different from false [2024-11-14 03:18:04,965 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:18:04,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361588969] [2024-11-14 03:18:04,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361588969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:04,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1628492268] [2024-11-14 03:18:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:04,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:04,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:18:04,968 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:18:04,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-14 03:18:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:18:06,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:18:06,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:11,842 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 03:18:13,288 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 57 treesize of output 42 [2024-11-14 03:18:14,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:14,837 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 57 treesize of output 42 [2024-11-14 03:18:15,665 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 57 treesize of output 42 [2024-11-14 03:18:16,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:16,259 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 03:18:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:18:16,364 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1628492268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:16,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910667154] [2024-11-14 03:18:16,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:16,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:18:16,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:18:16,832 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:18:16,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-14 03:18:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:18:17,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 03:18:17,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:20,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:21,499 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 54 treesize of output 39 [2024-11-14 03:18:21,954 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 03:18:21,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:18:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910667154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:18:21,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-14 03:18:21,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12, 12] total 29 [2024-11-14 03:18:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349932012] [2024-11-14 03:18:21,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:18:21,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:18:21,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:18:21,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:18:21,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=944, Unknown=16, NotChecked=64, Total=1190 [2024-11-14 03:18:21,956 INFO L87 Difference]: Start difference. First operand 452 states and 614 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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 03:18:27,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:18:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:18:29,566 INFO L93 Difference]: Finished difference Result 1032 states and 1403 transitions. [2024-11-14 03:18:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:18:29,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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 03:18:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:18:29,578 INFO L225 Difference]: With dead ends: 1032 [2024-11-14 03:18:29,578 INFO L226 Difference]: Without dead ends: 583 [2024-11-14 03:18:29,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 483 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=199, Invalid=1195, Unknown=16, NotChecked=72, Total=1482 [2024-11-14 03:18:29,580 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 445 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:18:29,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 401 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-14 03:18:29,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-14 03:18:29,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 467. [2024-11-14 03:18:29,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 417 states have (on average 1.3333333333333333) internal successors, (556), 419 states have internal predecessors, (556), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:18:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 634 transitions. [2024-11-14 03:18:29,693 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 634 transitions. Word has length 151 [2024-11-14 03:18:29,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:18:29,694 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 634 transitions. [2024-11-14 03:18:29,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 8 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 03:18:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 634 transitions. [2024-11-14 03:18:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:18:29,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:18:29,696 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 03:18:29,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2024-11-14 03:18:29,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-14 03:18:30,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-14 03:18:30,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:18:30,297 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:18:30,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:18:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash -227487375, now seen corresponding path program 1 times [2024-11-14 03:18:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:18:30,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246387] [2024-11-14 03:18:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:30,298 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 03:18:30,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:18:30,300 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:18:30,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Waiting until timeout for monitored process [2024-11-14 03:18:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:18:30,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-14 03:18:30,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:31,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:33,458 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 16 treesize of output 11 [2024-11-14 03:18:34,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:36,264 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 16 treesize of output 11 [2024-11-14 03:18:37,470 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 16 treesize of output 11 [2024-11-14 03:18:38,566 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 16 treesize of output 11 [2024-11-14 03:18:40,027 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 23 treesize of output 21 [2024-11-14 03:18:40,701 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 23 treesize of output 21 [2024-11-14 03:18:41,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2024-11-14 03:18:41,949 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 23 treesize of output 21 [2024-11-14 03:18:42,724 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 23 treesize of output 21 [2024-11-14 03:18:43,378 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 24 treesize of output 22 [2024-11-14 03:18:43,667 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 24 treesize of output 22 [2024-11-14 03:18:43,914 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 23 treesize of output 11 [2024-11-14 03:18:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 03:18:44,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:44,633 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1226 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1227 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1226) c_~var_1_11_Pointer~0.base v_ArrVal_1227))) (bvuge (select (select .cse0 c_~var_1_7_Pointer~0.base) c_~var_1_7_Pointer~0.offset) (select (select .cse0 c_~var_1_1_Pointer~0.base) c_~var_1_1_Pointer~0.offset))))) is different from false [2024-11-14 03:18:45,510 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:18:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246387] [2024-11-14 03:18:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [246387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1445295879] [2024-11-14 03:18:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:45,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:45,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:18:45,514 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:18:45,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-14 03:18:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:18:47,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:18:47,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:49,988 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 21 treesize of output 19 [2024-11-14 03:18:50,244 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 21 treesize of output 19 [2024-11-14 03:18:50,491 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 27 treesize of output 11 [2024-11-14 03:18:50,497 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 03:18:50,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:18:50,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1445295879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:18:50,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 03:18:50,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 28 [2024-11-14 03:18:50,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865551865] [2024-11-14 03:18:50,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:18:50,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 03:18:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:18:50,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 03:18:50,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=896, Unknown=31, NotChecked=64, Total=1190 [2024-11-14 03:18:50,499 INFO L87 Difference]: Start difference. First operand 467 states and 634 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:18:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:18:52,347 INFO L93 Difference]: Finished difference Result 960 states and 1305 transitions. [2024-11-14 03:18:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:18:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:18:52,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:18:52,351 INFO L225 Difference]: With dead ends: 960 [2024-11-14 03:18:52,351 INFO L226 Difference]: Without dead ends: 496 [2024-11-14 03:18:52,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=211, Invalid=952, Unknown=31, NotChecked=66, Total=1260 [2024-11-14 03:18:52,352 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 224 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:18:52,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 481 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-14 03:18:52,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-14 03:18:52,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 467. [2024-11-14 03:18:52,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 417 states have (on average 1.330935251798561) internal successors, (555), 419 states have internal predecessors, (555), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:18:52,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 633 transitions. [2024-11-14 03:18:52,426 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 633 transitions. Word has length 151 [2024-11-14 03:18:52,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:18:52,426 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 633 transitions. [2024-11-14 03:18:52,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 7 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 03:18:52,426 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 633 transitions. [2024-11-14 03:18:52,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:18:52,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:18:52,428 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 03:18:52,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Ended with exit code 0 [2024-11-14 03:18:52,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-11-14 03:18:52,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:52,829 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:18:52,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:18:52,829 INFO L85 PathProgramCache]: Analyzing trace with hash 874007082, now seen corresponding path program 1 times [2024-11-14 03:18:52,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:18:52,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301368320] [2024-11-14 03:18:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:18:52,830 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 03:18:52,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:18:52,832 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:18:52,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:18:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:18:53,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:18:53,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:57,302 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 03:18:58,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:58,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:18:59,436 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 96 treesize of output 74 [2024-11-14 03:18:59,695 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 03:18:59,833 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 292 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-14 03:18:59,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:19:00,383 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:19:00,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301368320] [2024-11-14 03:19:00,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301368320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:00,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1502719876] [2024-11-14 03:19:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:00,384 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:19:00,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:19:00,386 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:19:00,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2024-11-14 03:19:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:02,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-14 03:19:02,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:10,210 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 03:19:12,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:19:14,282 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 81 treesize of output 65 [2024-11-14 03:19:15,461 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 81 treesize of output 65 [2024-11-14 03:19:17,008 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 120 treesize of output 92 [2024-11-14 03:19:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:19:17,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:19:18,081 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1319 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1319))) (fp.lt (let ((.cse0 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-14 03:19:18,138 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1319 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1318 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base v_ArrVal_1318) c_~var_1_11_Pointer~0.base v_ArrVal_1319))) (fp.lt (let ((.cse0 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse2 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)))))) is different from false [2024-11-14 03:19:19,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1502719876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:19,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960882072] [2024-11-14 03:19:19,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:19,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:19:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:19:19,482 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:19:19,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-14 03:19:19,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:19,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:19:19,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:23,298 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 94 treesize of output 57 [2024-11-14 03:19:23,840 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 87 treesize of output 70 [2024-11-14 03:19:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 18 proven. 33 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-14 03:19:24,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:19:26,612 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1347 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_int| c_~var_1_11_Pointer~0.base v_ArrVal_1347))) (let ((.cse2 (let ((.cse4 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (fp.lt (let ((.cse0 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2) (fp.eq (let ((.cse3 (select (select .cse1 c_~var_1_8_Pointer~0.base) c_~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) .cse2))))) is different from false [2024-11-14 03:19:26,742 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1347 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_236| (_ BitVec 32))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_236|)) c_~var_1_11_Pointer~0.base v_ArrVal_1347))) (let ((.cse2 (let ((.cse4 (select (select .cse1 c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2) (fp.lt (let ((.cse3 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) .cse2) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_236|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_236|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_236|)) |c_ULTIMATE.start_step_#t~ite36#1|)))))) is different from false [2024-11-14 03:19:27,689 INFO L349 Elim1Store]: treesize reduction 44, result has 48.8 percent of original size [2024-11-14 03:19:27,689 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 3 new quantified variables, introduced 4 case distinctions, treesize of input 279 treesize of output 188 [2024-11-14 03:19:27,883 INFO L349 Elim1Store]: treesize reduction 23, result has 32.4 percent of original size [2024-11-14 03:19:27,884 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 409 treesize of output 284 [2024-11-14 03:19:27,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:19:27,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 227 treesize of output 203 [2024-11-14 03:19:31,367 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 03:19:31,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960882072] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:31,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:19:31,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [11, 14, 9] total 43 [2024-11-14 03:19:31,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265233043] [2024-11-14 03:19:31,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:19:31,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 03:19:31,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:19:31,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 03:19:31,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=2267, Unknown=8, NotChecked=404, Total=2970 [2024-11-14 03:19:31,369 INFO L87 Difference]: Start difference. First operand 467 states and 633 transitions. Second operand has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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 03:19:37,282 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 03:19:44,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:19:44,169 INFO L93 Difference]: Finished difference Result 1000 states and 1355 transitions. [2024-11-14 03:19:44,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:19:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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 03:19:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:19:44,172 INFO L225 Difference]: With dead ends: 1000 [2024-11-14 03:19:44,172 INFO L226 Difference]: Without dead ends: 536 [2024-11-14 03:19:44,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 677 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1152 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=350, Invalid=3186, Unknown=20, NotChecked=476, Total=4032 [2024-11-14 03:19:44,174 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 200 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 2 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 476 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:19:44,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 921 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 707 Invalid, 31 Unknown, 476 Unchecked, 8.9s Time] [2024-11-14 03:19:44,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-14 03:19:44,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 506. [2024-11-14 03:19:44,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 456 states have (on average 1.3267543859649122) internal successors, (605), 458 states have internal predecessors, (605), 39 states have call successors, (39), 10 states have call predecessors, (39), 10 states have return successors, (39), 37 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:19:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 683 transitions. [2024-11-14 03:19:44,257 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 683 transitions. Word has length 151 [2024-11-14 03:19:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:19:44,258 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 683 transitions. [2024-11-14 03:19:44,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 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 03:19:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 683 transitions. [2024-11-14 03:19:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:19:44,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:19:44,260 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 03:19:44,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:19:44,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-14 03:19:44,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2024-11-14 03:19:44,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:19:44,861 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:19:44,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:19:44,861 INFO L85 PathProgramCache]: Analyzing trace with hash 172942504, now seen corresponding path program 1 times [2024-11-14 03:19:44,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:19:44,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921866881] [2024-11-14 03:19:44,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:44,862 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:19:44,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:19:44,864 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:19:44,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2024-11-14 03:19:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:45,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-14 03:19:45,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:19:49,468 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 03:19:50,023 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 15 treesize of output 1 [2024-11-14 03:19:50,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:19:51,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:19:52,018 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 96 treesize of output 74 [2024-11-14 03:19:52,266 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 03:19:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:19:52,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:19:52,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:19:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921866881] [2024-11-14 03:19:52,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1921866881] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:19:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [951001115] [2024-11-14 03:19:52,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:19:52,994 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:19:52,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:19:52,995 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:19:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2024-11-14 03:19:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:19:55,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 03:19:55,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:01,026 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 03:20:02,846 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 64 treesize of output 32 [2024-11-14 03:20:04,515 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 105 treesize of output 83 [2024-11-14 03:20:05,553 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 105 treesize of output 83 [2024-11-14 03:20:06,796 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 144 treesize of output 110 [2024-11-14 03:20:07,333 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 03:20:07,472 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:20:07,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:07,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [951001115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:07,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118247954] [2024-11-14 03:20:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:20:07,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:20:07,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:20:07,694 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:20:07,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-14 03:20:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:20:08,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-14 03:20:08,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:14,106 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 03:20:15,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:20:16,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:20:17,536 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 96 treesize of output 74 [2024-11-14 03:20:18,576 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 163 treesize of output 90 [2024-11-14 03:20:19,177 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 156 treesize of output 121 [2024-11-14 03:20:20,406 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 211 treesize of output 91 [2024-11-14 03:20:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 18 proven. 310 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-14 03:20:21,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:24,422 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1441 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem115#1| (_ FloatingPoint 8 24)) (|v_skolemized_q#valueAsBitvector_256| (_ BitVec 32))) (let ((.cse1 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_256|)) c_~var_1_11_Pointer~0.base v_ArrVal_1441))) (let ((.cse2 (let ((.cse3 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (or (fp.eq (let ((.cse0 (select (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2) (not (= |c_ULTIMATE.start_step_#t~ite36#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_256|)))) (not (fp.lt .cse2 |ULTIMATE.start_property_#t~mem115#1|)))))) is different from false [2024-11-14 03:20:24,486 WARN L851 $PredicateComparison]: unable to prove that (or (forall ((|ULTIMATE.start_step_#t~mem33#1| (_ FloatingPoint 8 24))) (not (fp.lt |c_ULTIMATE.start_step_#t~mem32#1| |ULTIMATE.start_step_#t~mem33#1|))) (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1441 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem115#1| (_ FloatingPoint 8 24)) (|v_skolemized_q#valueAsBitvector_256| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_256|)) c_~var_1_11_Pointer~0.base v_ArrVal_1441))) (let ((.cse3 (let ((.cse4 (select (select .cse2 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (= (let ((.cse0 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_256|)))) (fp.eq (let ((.cse1 (select (select .cse2 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse3) (not (fp.lt .cse3 |ULTIMATE.start_property_#t~mem115#1|))))))) is different from false [2024-11-14 03:20:24,560 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse5 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (or (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1441 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_property_#t~mem115#1| (_ FloatingPoint 8 24)) (|v_skolemized_q#valueAsBitvector_256| (_ BitVec 32))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_8_Pointer~0.base (store (select |c_#memory_int| c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_256|)) c_~var_1_11_Pointer~0.base v_ArrVal_1441))) (let ((.cse3 (let ((.cse4 (select (select .cse2 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (= .cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_256|)))) (fp.eq (let ((.cse1 (select (select .cse2 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) .cse3) (not (fp.lt .cse3 |ULTIMATE.start_property_#t~mem115#1|)))))) (forall ((|ULTIMATE.start_step_#t~mem33#1| (_ FloatingPoint 8 24))) (not (fp.lt .cse0 |ULTIMATE.start_step_#t~mem33#1|))))) is different from false [2024-11-14 03:20:25,845 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_9_Pointer~0.offset (_ BitVec 32))) (or (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1441 (Array (_ BitVec 32) (_ BitVec 32))) (|ULTIMATE.start_step_#t~mem33#1| (_ FloatingPoint 8 24)) (|ULTIMATE.start_property_#t~mem115#1| (_ FloatingPoint 8 24)) (v_ArrVal_1439 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_256| (_ BitVec 32))) (let ((.cse6 (store |c_#memory_int| c_~var_1_12_Pointer~0.base v_ArrVal_1439))) (let ((.cse3 (store (store .cse6 c_~var_1_8_Pointer~0.base (store (select .cse6 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_256|)) c_~var_1_11_Pointer~0.base v_ArrVal_1441))) (let ((.cse0 (let ((.cse5 (select (select .cse6 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5)))) (.cse1 (let ((.cse4 (select (select .cse3 c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4))))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_256|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_256|)) .cse0)) (not (fp.lt .cse1 |ULTIMATE.start_property_#t~mem115#1|)) (not (fp.lt .cse0 |ULTIMATE.start_step_#t~mem33#1|)) (fp.eq (let ((.cse2 (select (select .cse3 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) .cse1)))))) (not (fp.eq (let ((.cse7 (select (select |c_#memory_int| c_~var_1_9_Pointer~0.base) ~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) (let ((.cse8 (select (select |c_#memory_int| c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8))))))) is different from false [2024-11-14 03:20:26,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118247954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:26,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:20:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 21] total 45 [2024-11-14 03:20:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143555141] [2024-11-14 03:20:26,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:20:26,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-14 03:20:26,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:20:26,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-14 03:20:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=2856, Unknown=13, NotChecked=444, Total=3540 [2024-11-14 03:20:26,228 INFO L87 Difference]: Start difference. First operand 506 states and 683 transitions. Second operand has 46 states, 46 states have (on average 4.282608695652174) internal successors, (197), 45 states have internal predecessors, (197), 14 states have call successors, (54), 14 states have call predecessors, (54), 15 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 03:20:50,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:21:06,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:06,709 INFO L93 Difference]: Finished difference Result 1571 states and 2110 transitions. [2024-11-14 03:21:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-14 03:21:06,710 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.282608695652174) internal successors, (197), 45 states have internal predecessors, (197), 14 states have call successors, (54), 14 states have call predecessors, (54), 15 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) Word has length 151 [2024-11-14 03:21:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:06,727 INFO L225 Difference]: With dead ends: 1571 [2024-11-14 03:21:06,727 INFO L226 Difference]: Without dead ends: 1068 [2024-11-14 03:21:06,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 492 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 2343 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=1010, Invalid=7923, Unknown=13, NotChecked=756, Total=9702 [2024-11-14 03:21:06,730 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 2095 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 5532 mSolverCounterSat, 289 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 5828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 5532 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:06,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 2890 Invalid, 5828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [289 Valid, 5532 Invalid, 7 Unknown, 0 Unchecked, 25.4s Time] [2024-11-14 03:21:06,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-14 03:21:06,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 538. [2024-11-14 03:21:06,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 486 states have (on average 1.3251028806584362) internal successors, (644), 487 states have internal predecessors, (644), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:21:06,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 724 transitions. [2024-11-14 03:21:06,820 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 724 transitions. Word has length 151 [2024-11-14 03:21:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:06,820 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 724 transitions. [2024-11-14 03:21:06,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.282608695652174) internal successors, (197), 45 states have internal predecessors, (197), 14 states have call successors, (54), 14 states have call predecessors, (54), 15 states have return successors, (54), 14 states have call predecessors, (54), 14 states have call successors, (54) [2024-11-14 03:21:06,821 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 724 transitions. [2024-11-14 03:21:06,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-14 03:21:06,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:06,823 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 03:21:06,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2024-11-14 03:21:07,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-14 03:21:07,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2024-11-14 03:21:07,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:21:07,424 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:21:07,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:07,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1513237334, now seen corresponding path program 1 times [2024-11-14 03:21:07,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:21:07,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864048138] [2024-11-14 03:21:07,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:07,425 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 03:21:07,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:21:07,427 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:21:07,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2024-11-14 03:21:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:07,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:21:07,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2024-11-14 03:21:07,917 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:21:07,917 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:21:07,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864048138] [2024-11-14 03:21:07,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864048138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:21:07,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:21:07,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:21:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080584414] [2024-11-14 03:21:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:21:07,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:21:07,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:21:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:21:07,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:21:07,921 INFO L87 Difference]: Start difference. First operand 538 states and 724 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 03:21:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:08,051 INFO L93 Difference]: Finished difference Result 1073 states and 1445 transitions. [2024-11-14 03:21:08,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:21:08,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 151 [2024-11-14 03:21:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:08,054 INFO L225 Difference]: With dead ends: 1073 [2024-11-14 03:21:08,054 INFO L226 Difference]: Without dead ends: 538 [2024-11-14 03:21:08,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 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 03:21:08,057 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 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 03:21:08,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:21:08,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-14 03:21:08,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2024-11-14 03:21:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 486 states have (on average 1.3209876543209877) internal successors, (642), 487 states have internal predecessors, (642), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 39 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:21:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 722 transitions. [2024-11-14 03:21:08,143 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 722 transitions. Word has length 151 [2024-11-14 03:21:08,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:08,143 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 722 transitions. [2024-11-14 03:21:08,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 03:21:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 722 transitions. [2024-11-14 03:21:08,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-14 03:21:08,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:08,146 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 03:21:08,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Ended with exit code 0 [2024-11-14 03:21:08,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:21:08,346 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:21:08,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:08,348 INFO L85 PathProgramCache]: Analyzing trace with hash -376978352, now seen corresponding path program 1 times [2024-11-14 03:21:08,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:21:08,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400042260] [2024-11-14 03:21:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:08,349 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 03:21:08,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:21:08,351 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:21:08,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:21:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:09,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-14 03:21:09,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:13,787 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 03:21:15,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:21:17,500 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 26 [2024-11-14 03:21:18,234 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 26 [2024-11-14 03:21:18,929 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 26 [2024-11-14 03:21:19,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2024-11-14 03:21:20,627 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 26 [2024-11-14 03:21:20,940 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 26 [2024-11-14 03:21:21,181 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 26 [2024-11-14 03:21:21,415 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 36 treesize of output 16 [2024-11-14 03:21:21,525 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 25 proven. 459 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-14 03:21:21,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:22,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:21:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400042260] [2024-11-14 03:21:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400042260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:22,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [12739362] [2024-11-14 03:21:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:22,363 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:21:22,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:21:22,367 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:21:22,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2024-11-14 03:21:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:24,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-14 03:21:24,712 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:32,329 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 03:21:34,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:21:37,005 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 105 treesize of output 83 [2024-11-14 03:21:38,673 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 105 treesize of output 83 [2024-11-14 03:21:40,480 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 144 treesize of output 110 [2024-11-14 03:21:41,099 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 96 treesize of output 74 [2024-11-14 03:21:42,016 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 03:21:43,087 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 169 treesize of output 73 [2024-11-14 03:21:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 340 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-14 03:21:43,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:21:48,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [12739362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:21:48,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087550784] [2024-11-14 03:21:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:21:48,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:48,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:48,335 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:21:48,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc8932c5-1631-4f51-b8e1-d5ca7db9f6be/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-14 03:21:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:21:50,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-14 03:21:50,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:21:56,124 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 03:21:58,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:22:00,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:22:01,621 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 96 treesize of output 74 [2024-11-14 03:22:02,366 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 96 treesize of output 74 [2024-11-14 03:22:03,507 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 03:22:05,102 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 169 treesize of output 73 [2024-11-14 03:22:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 292 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-14 03:22:05,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:22:05,988 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_8_Pointer~0.offset (_ BitVec 32)) (v_ArrVal_1573 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_274| (_ BitVec 32))) (let ((.cse1 (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1573)) (.cse2 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_274|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_274|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_274|)))) (or (fp.geq (let ((.cse0 (select (select (store .cse1 c_~var_1_8_Pointer~0.base (store (select .cse1 c_~var_1_8_Pointer~0.base) ~var_1_8_Pointer~0.offset |v_skolemized_q#valueAsBitvector_274|)) c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) .cse2) (not (= (let ((.cse3 (select (select .cse1 c_~var_1_9_Pointer~0.base) c_~var_1_9_Pointer~0.offset))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))) .cse2))))) is different from false [2024-11-14 03:22:11,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087550784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:22:11,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:22:11,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 16] total 56 [2024-11-14 03:22:11,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591204244] [2024-11-14 03:22:11,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:22:11,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-14 03:22:11,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:22:11,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-14 03:22:11,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=4623, Unknown=62, NotChecked=138, Total=5112 [2024-11-14 03:22:11,287 INFO L87 Difference]: Start difference. First operand 538 states and 722 transitions. Second operand has 57 states, 54 states have (on average 3.814814814814815) internal successors, (206), 52 states have internal predecessors, (206), 18 states have call successors, (54), 17 states have call predecessors, (54), 18 states have return successors, (54), 17 states have call predecessors, (54), 18 states have call successors, (54) [2024-11-14 03:22:52,239 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 [0] [2024-11-14 03:22:54,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:23:01,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-14 03:23:03,416 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 [0]