./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.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_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/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_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/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_b4ec685d-128f-420e-a736-4452640c32e0/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 99d92429afe7a1d3dd5b770cdd3a3c403da1aa6e04070cb3749a858d645383e6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:01:22,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:01:22,687 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:01:22,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:01:22,694 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:01:22,721 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:01:22,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:01:22,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:01:22,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:01:22,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:01:22,723 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:01:22,723 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:01:22,724 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:01:22,725 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:01:22,725 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:01:22,725 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:01:22,725 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:01:22,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:01:22,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:01:22,726 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:01:22,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:01:22,727 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:01:22,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:01:22,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:01:22,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:01:22,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:01:22,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:01:22,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:01:22,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:22,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:01:22,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:01:22,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:01:22,730 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:01:22,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:01:22,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:01:22,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:01:22,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:01:22,730 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_b4ec685d-128f-420e-a736-4452640c32e0/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 -> 99d92429afe7a1d3dd5b770cdd3a3c403da1aa6e04070cb3749a858d645383e6 [2024-11-14 03:01:23,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:01:23,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:01:23,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:01:23,083 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:01:23,084 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:01:23,085 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i Unable to find full path for "g++" [2024-11-14 03:01:25,336 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:01:25,700 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:01:25,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i [2024-11-14 03:01:25,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/cef1a1784/21bb816dc467413fa600ec25f16e3cef/FLAGfab671aba [2024-11-14 03:01:25,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/cef1a1784/21bb816dc467413fa600ec25f16e3cef [2024-11-14 03:01:25,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:01:25,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:01:25,928 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:25,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:01:25,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:01:25,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:25" (1/1) ... [2024-11-14 03:01:25,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a88a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:25, skipping insertion in model container [2024-11-14 03:01:25,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:25" (1/1) ... [2024-11-14 03:01:25,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:01:26,148 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_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i[916,929] [2024-11-14 03:01:26,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:26,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:01:26,241 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_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i[916,929] [2024-11-14 03:01:26,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:26,359 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:01:26,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26 WrapperNode [2024-11-14 03:01:26,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:26,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:26,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:01:26,362 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:01:26,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,462 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 418 [2024-11-14 03:01:26,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:26,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:01:26,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:01:26,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:01:26,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,494 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,539 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,556 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:01:26,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:01:26,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:01:26,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:01:26,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (1/1) ... [2024-11-14 03:01:26,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:26,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:26,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:01:26,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:01:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:01:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:01:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-14 03:01:26,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-14 03:01:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:01:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-14 03:01:26,661 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:01:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:01:26,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:01:26,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:01:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:01:26,809 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:01:26,812 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:01:27,420 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-14 03:01:27,420 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:01:27,966 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:01:27,966 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:01:27,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:27 BoogieIcfgContainer [2024-11-14 03:01:27,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:01:27,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:01:27,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:01:27,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:01:27,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:01:25" (1/3) ... [2024-11-14 03:01:27,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edeece5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:27, skipping insertion in model container [2024-11-14 03:01:27,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:26" (2/3) ... [2024-11-14 03:01:27,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2edeece5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:27, skipping insertion in model container [2024-11-14 03:01:27,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:27" (3/3) ... [2024-11-14 03:01:27,980 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-78.i [2024-11-14 03:01:28,000 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:01:28,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-78.i that has 2 procedures, 29 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:01:28,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:01:28,090 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;@3f50f6f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:01:28,090 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:01:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:01:28,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 03:01:28,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:28,105 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:28,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:28,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:28,111 INFO L85 PathProgramCache]: Analyzing trace with hash -854075837, now seen corresponding path program 1 times [2024-11-14 03:01:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:28,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542247511] [2024-11-14 03:01:28,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:28,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:01:29,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:01:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:01:30,120 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:01:30,122 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:01:30,124 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:01:30,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:01:30,133 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:01:30,219 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:01:30,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:01:30 BoogieIcfgContainer [2024-11-14 03:01:30,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:01:30,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:01:30,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:01:30,224 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:01:30,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:27" (3/4) ... [2024-11-14 03:01:30,227 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:01:30,228 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:01:30,232 INFO L158 Benchmark]: Toolchain (without parser) took 4304.00ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 47.5MB in the end (delta: 69.7MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2024-11-14 03:01:30,233 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:30,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.29ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 103.0MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:01:30,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.75ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 99.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:30,236 INFO L158 Benchmark]: Boogie Preprocessor took 106.23ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:30,236 INFO L158 Benchmark]: RCFGBuilder took 1396.43ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 87.7MB in the end (delta: 9.4MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2024-11-14 03:01:30,237 INFO L158 Benchmark]: TraceAbstraction took 2252.77ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 48.8MB in the end (delta: 39.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. [2024-11-14 03:01:30,237 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 17.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:01:30,241 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.29ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 103.0MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.75ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 99.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 106.23ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1396.43ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 87.7MB in the end (delta: 9.4MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2252.77ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 48.8MB in the end (delta: 39.0MB). Peak memory consumption was 57.3MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 47.5MB in the end (delta: 17.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 78, overapproximation of someBinaryDOUBLEComparisonOperation at line 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of someBinaryArithmeticFLOAToperation at line 53. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 0 }; [L25-L27] double double_Array_0[3] = { 128.5, 0.0, 127.875 }; [L28-L30] float float_Array_0[3] = { 100.55, 4.75, 128.75 }; [L31-L33] signed long int signed_long_int_Array_0[1] = { -200 }; [L34-L36] unsigned char unsigned_char_Array_0[2] = { 16, 1 }; [L94] isInitial = 1 [L95] FCALL initially() [L96] COND TRUE 1 [L97] FCALL updateLastVariables() [L98] CALL updateVariables() [L69] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L70] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L70] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L71] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L71] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L72] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L74] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L75] double_Array_0[1] = __VERIFIER_nondet_double() [L76] EXPR double_Array_0[1] [L76] EXPR double_Array_0[1] >= 4611686.018427382800e+12F && double_Array_0[1] <= -1.0e-20F [L76] EXPR (double_Array_0[1] >= 4611686.018427382800e+12F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) [L76] EXPR double_Array_0[1] [L76] EXPR double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F [L76] EXPR double_Array_0[1] [L76] EXPR double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F [L76] EXPR (double_Array_0[1] >= 4611686.018427382800e+12F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L76] CALL assume_abort_if_not((double_Array_0[1] >= 4611686.018427382800e+12F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not((double_Array_0[1] >= 4611686.018427382800e+12F && double_Array_0[1] <= -1.0e-20F) || (double_Array_0[1] <= 9223372.036854765600e+12F && double_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L77] double_Array_0[2] = __VERIFIER_nondet_double() [L78] EXPR double_Array_0[2] [L78] EXPR double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F [L78] EXPR double_Array_0[2] [L78] EXPR double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F [L78] EXPR (double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L78] CALL assume_abort_if_not((double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not((double_Array_0[2] >= 0.0F && double_Array_0[2] <= -1.0e-20F) || (double_Array_0[2] <= 4611686.018427382800e+12F && double_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L79] float_Array_0[1] = __VERIFIER_nondet_float() [L80] EXPR float_Array_0[1] [L80] EXPR float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F [L80] EXPR float_Array_0[1] [L80] EXPR float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F [L80] EXPR (float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L80] CALL assume_abort_if_not((float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((float_Array_0[1] >= 0.0F && float_Array_0[1] <= -1.0e-20F) || (float_Array_0[1] <= 9223372.036854765600e+12F && float_Array_0[1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L81] float_Array_0[2] = __VERIFIER_nondet_float() [L82] EXPR float_Array_0[2] [L82] EXPR float_Array_0[2] >= 0.0F && float_Array_0[2] <= -1.0e-20F [L82] EXPR (float_Array_0[2] >= 0.0F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F ) [L82] EXPR float_Array_0[2] [L82] EXPR float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F [L82] EXPR float_Array_0[2] [L82] EXPR float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F [L82] EXPR (float_Array_0[2] >= 0.0F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L82] CALL assume_abort_if_not((float_Array_0[2] >= 0.0F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((float_Array_0[2] >= 0.0F && float_Array_0[2] <= -1.0e-20F) || (float_Array_0[2] <= 9223372.036854765600e+12F && float_Array_0[2] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L83] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L85] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L98] RET updateVariables() [L99] CALL step() [L40] EXPR float_Array_0[1] [L40] COND TRUE 0.8f > (- float_Array_0[1]) [L41] EXPR unsigned_char_Array_0[0] [L41] unsigned_char_Array_0[1] = unsigned_char_Array_0[0] [L43] EXPR unsigned_char_Array_0[1] [L43] EXPR unsigned_char_Array_0[1] [L43] unsigned char stepLocal_1 = unsigned_char_Array_0[1] > unsigned_char_Array_0[1]; [L44] EXPR BOOL_unsigned_char_Array_0[0] [L44] unsigned char stepLocal_0 = BOOL_unsigned_char_Array_0[0]; [L45] EXPR BOOL_unsigned_char_Array_0[1] [L45] COND FALSE !(BOOL_unsigned_char_Array_0[1] && stepLocal_0) [L52] BOOL_unsigned_char_Array_0[1] [L52] COND FALSE !(BOOL_unsigned_char_Array_0[1]) [L55] EXPR signed_long_int_Array_0[0] [L55] EXPR unsigned_char_Array_0[1] [L55] COND TRUE signed_long_int_Array_0[0] < unsigned_char_Array_0[1] [L56] EXPR float_Array_0[2] [L56] EXPR float_Array_0[1] [L56] EXPR ((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]) [L56] EXPR float_Array_0[1] [L56] EXPR ((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]) [L56] float_Array_0[0] = ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))) [L61] EXPR signed_long_int_Array_0[0] [L61] signed long int stepLocal_2 = signed_long_int_Array_0[0]; [L62] COND FALSE !(stepLocal_2 <= ((((8u) < 0 ) ? -(8u) : (8u)))) [L65] EXPR double_Array_0[1] [L65] EXPR double_Array_0[2] [L65] EXPR float_Array_0[2] [L65] double_Array_0[0] = ((double_Array_0[1] - double_Array_0[2]) - float_Array_0[2]) [L99] RET step() [L100] CALL, EXPR property() [L90] EXPR BOOL_unsigned_char_Array_0[1] [L90] EXPR BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0] [L90] EXPR (BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1 [L90] EXPR ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1) && (BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1])))) [L90] EXPR BOOL_unsigned_char_Array_0[1] [L90] EXPR BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1]))) [L90] EXPR signed_long_int_Array_0[0] [L90] EXPR unsigned_char_Array_0[1] [L90] EXPR (signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1])) [L90] EXPR float_Array_0[0] [L90] EXPR float_Array_0[2] [L90] EXPR float_Array_0[1] [L90] EXPR ((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]) [L90] EXPR float_Array_0[2] [L90] EXPR ((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]) [L90] EXPR (signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1])) [L90] EXPR BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1]))) [L90] EXPR ((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1) && (BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1])))) [L90] EXPR (((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1) && (BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1]))))) && ((signed_long_int_Array_0[0] <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (double_Array_0[0] == ((double) (float_Array_0[1] - 99.5))) : (double_Array_0[0] == ((double) ((double_Array_0[1] - double_Array_0[2]) - float_Array_0[2])))) [L90] EXPR ((((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1) && (BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1]))))) && ((signed_long_int_Array_0[0] <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (double_Array_0[0] == ((double) (float_Array_0[1] - 99.5))) : (double_Array_0[0] == ((double) ((double_Array_0[1] - double_Array_0[2]) - float_Array_0[2]))))) && ((0.8f > (- float_Array_0[1])) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) [L90-L91] return ((((BOOL_unsigned_char_Array_0[1] && BOOL_unsigned_char_Array_0[0]) ? ((BOOL_unsigned_char_Array_0[1] && (unsigned_char_Array_0[1] > unsigned_char_Array_0[1])) ? (signed_long_int_Array_0[0] == ((signed long int) (unsigned_char_Array_0[1] - unsigned_char_Array_0[1]))) : (signed_long_int_Array_0[0] == ((signed long int) ((unsigned_char_Array_0[1] + 5) - unsigned_char_Array_0[1])))) : 1) && (BOOL_unsigned_char_Array_0[1] ? (float_Array_0[0] == ((float) (float_Array_0[1] - float_Array_0[2]))) : ((signed_long_int_Array_0[0] < unsigned_char_Array_0[1]) ? (float_Array_0[0] == ((float) ((((float_Array_0[2]) > (float_Array_0[1])) ? (float_Array_0[2]) : (float_Array_0[1]))))) : (float_Array_0[0] == ((float) float_Array_0[1]))))) && ((signed_long_int_Array_0[0] <= ((((8u) < 0 ) ? -(8u) : (8u)))) ? (double_Array_0[0] == ((double) (float_Array_0[1] - 99.5))) : (double_Array_0[0] == ((double) ((double_Array_0[1] - double_Array_0[2]) - float_Array_0[2]))))) && ((0.8f > (- float_Array_0[1])) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) ; [L100] RET, EXPR property() [L100] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, float_Array_0={6:0}, isInitial=1, signed_long_int_Array_0={7:0}, unsigned_char_Array_0={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 10, 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=29occurred 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, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 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 03:01:30,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/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_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/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_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/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_b4ec685d-128f-420e-a736-4452640c32e0/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 99d92429afe7a1d3dd5b770cdd3a3c403da1aa6e04070cb3749a858d645383e6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:01:33,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:01:33,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-14 03:01:33,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:01:33,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:01:33,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:01:33,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:01:33,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:01:33,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:01:33,634 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:01:33,634 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:01:33,634 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:01:33,635 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:01:33,637 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:01:33,639 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:01:33,639 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:01:33,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:01:33,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:01:33,640 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:01:33,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:01:33,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:01:33,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:01:33,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:01:33,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:01:33,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:01:33,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:01:33,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:01:33,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:01:33,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:01:33,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:01:33,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:33,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:01:33,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:01:33,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:01:33,645 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:01:33,646 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:01:33,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:01:33,646 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:01:33,646 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_b4ec685d-128f-420e-a736-4452640c32e0/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 -> 99d92429afe7a1d3dd5b770cdd3a3c403da1aa6e04070cb3749a858d645383e6 [2024-11-14 03:01:34,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:01:34,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:01:34,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:01:34,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:01:34,076 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:01:34,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i Unable to find full path for "g++" [2024-11-14 03:01:36,199 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:01:36,561 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:01:36,564 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i [2024-11-14 03:01:36,579 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/5af9557dc/b857a9be95ee4700bc1e4bc01d086750/FLAGcaf85ab6c [2024-11-14 03:01:36,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/data/5af9557dc/b857a9be95ee4700bc1e4bc01d086750 [2024-11-14 03:01:36,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:01:36,614 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:01:36,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:36,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:01:36,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:01:36,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:36" (1/1) ... [2024-11-14 03:01:36,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc598dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:36, skipping insertion in model container [2024-11-14 03:01:36,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:01:36" (1/1) ... [2024-11-14 03:01:36,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:01:36,869 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_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i[916,929] [2024-11-14 03:01:36,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:37,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:01:37,036 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_b4ec685d-128f-420e-a736-4452640c32e0/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-78.i[916,929] [2024-11-14 03:01:37,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:01:37,118 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:01:37,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37 WrapperNode [2024-11-14 03:01:37,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:01:37,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:37,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:01:37,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:01:37,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,148 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,217 INFO L138 Inliner]: procedures = 36, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 418 [2024-11-14 03:01:37,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:01:37,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:01:37,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:01:37,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:01:37,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:01:37,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:01:37,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:01:37,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:01:37,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (1/1) ... [2024-11-14 03:01:37,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:01:37,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:37,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:01:37,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:01:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:01:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-14 03:01:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 03:01:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-14 03:01:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-14 03:01:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:01:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:01:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:01:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:01:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-14 03:01:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 03:01:37,613 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:01:37,614 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:01:41,915 INFO L? ?]: Removed 105 outVars from TransFormulas that were not future-live. [2024-11-14 03:01:41,915 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:01:41,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:01:41,931 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:01:41,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:41 BoogieIcfgContainer [2024-11-14 03:01:41,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:01:41,935 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:01:41,935 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:01:41,941 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:01:41,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:01:36" (1/3) ... [2024-11-14 03:01:41,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2326144a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:41, skipping insertion in model container [2024-11-14 03:01:41,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:01:37" (2/3) ... [2024-11-14 03:01:41,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2326144a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:01:41, skipping insertion in model container [2024-11-14 03:01:41,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:01:41" (3/3) ... [2024-11-14 03:01:41,945 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-78.i [2024-11-14 03:01:41,964 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:01:41,966 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-a_file-78.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:01:42,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:01:42,044 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;@64f5444b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:01:42,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:01:42,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 80 states have (on average 1.45) internal successors, (116), 81 states have internal predecessors, (116), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:01:42,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 03:01:42,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:42,062 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:42,062 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:42,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash -543187972, now seen corresponding path program 1 times [2024-11-14 03:01:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533987323] [2024-11-14 03:01:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:42,081 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 03:01:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:42,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:42,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:42,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:01:42,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:42,702 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-14 03:01:42,703 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:42,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533987323] [2024-11-14 03:01:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [533987323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:42,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:42,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:01:42,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961267353] [2024-11-14 03:01:42,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:42,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:01:42,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:42,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:01:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:01:42,740 INFO L87 Difference]: Start difference. First operand has 93 states, 80 states have (on average 1.45) internal successors, (116), 81 states have internal predecessors, (116), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:01:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:42,777 INFO L93 Difference]: Finished difference Result 179 states and 276 transitions. [2024-11-14 03:01:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:01:42,779 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2024-11-14 03:01:42,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:42,786 INFO L225 Difference]: With dead ends: 179 [2024-11-14 03:01:42,786 INFO L226 Difference]: Without dead ends: 89 [2024-11-14 03:01:42,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 97 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 03:01:42,792 INFO L432 NwaCegarLoop]: 129 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, 129 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 03:01:42,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:01:42,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-14 03:01:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-14 03:01:42,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 77 states have (on average 1.4155844155844155) internal successors, (109), 77 states have internal predecessors, (109), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:01:42,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-14 03:01:42,846 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 98 [2024-11-14 03:01:42,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:42,847 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-14 03:01:42,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:01:42,848 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-14 03:01:42,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-14 03:01:42,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:42,856 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:42,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-14 03:01:43,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:01:43,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:43,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1810712056, now seen corresponding path program 1 times [2024-11-14 03:01:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028941190] [2024-11-14 03:01:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:43,060 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 03:01:43,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:43,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:43,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:43,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:01:43,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-14 03:01:43,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:43,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:43,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028941190] [2024-11-14 03:01:43,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028941190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:43,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:43,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:01:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465095820] [2024-11-14 03:01:43,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:43,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:01:43,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:43,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:01:43,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:01:43,726 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-14 03:01:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:43,829 INFO L93 Difference]: Finished difference Result 177 states and 258 transitions. [2024-11-14 03:01:43,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:01:43,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 98 [2024-11-14 03:01:43,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:43,839 INFO L225 Difference]: With dead ends: 177 [2024-11-14 03:01:43,839 INFO L226 Difference]: Without dead ends: 91 [2024-11-14 03:01:43,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 95 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 03:01:43,842 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:43,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:43,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-14 03:01:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-14 03:01:43,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.4050632911392404) internal successors, (111), 79 states have internal predecessors, (111), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:01:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-14 03:01:43,855 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 98 [2024-11-14 03:01:43,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:43,857 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-14 03:01:43,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-14 03:01:43,858 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-14 03:01:43,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 03:01:43,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:43,861 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:43,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:44,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:01:44,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:44,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1943830781, now seen corresponding path program 1 times [2024-11-14 03:01:44,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:44,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14233760] [2024-11-14 03:01:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:44,064 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 03:01:44,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:44,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:44,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:44,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:01:44,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:45,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:01:45,026 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 175 treesize of output 67 [2024-11-14 03:01:45,132 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:01:45,132 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:45,133 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:45,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14233760] [2024-11-14 03:01:45,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14233760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:45,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:45,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:01:45,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924317251] [2024-11-14 03:01:45,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:45,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:01:45,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:45,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:01:45,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:01:45,135 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:01:48,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:01:50,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:01:53,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:01:54,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:54,739 INFO L93 Difference]: Finished difference Result 180 states and 260 transitions. [2024-11-14 03:01:54,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:01:54,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-14 03:01:54,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:54,741 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:01:54,741 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:01:54,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:01:54,743 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 109 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:54,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 347 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2024-11-14 03:01:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:01:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-14 03:01:54,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 79 states have internal predecessors, (110), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:01:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2024-11-14 03:01:54,755 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 100 [2024-11-14 03:01:54,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:54,756 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2024-11-14 03:01:54,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:01:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2024-11-14 03:01:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-14 03:01:54,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:54,759 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:01:54,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:54,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:01:54,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:54,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:54,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1933901079, now seen corresponding path program 1 times [2024-11-14 03:01:54,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:01:54,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794402430] [2024-11-14 03:01:54,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:54,961 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 03:01:54,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:01:54,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:01:54,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-14 03:01:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:55,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:01:55,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:55,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:01:55,866 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 173 treesize of output 65 [2024-11-14 03:01:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-14 03:01:55,942 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:01:55,943 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:01:55,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794402430] [2024-11-14 03:01:55,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794402430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:55,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:55,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:01:55,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442376424] [2024-11-14 03:01:55,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:55,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:01:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:01:55,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:01:55,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:01:55,945 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:01:59,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:02,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:02,613 INFO L93 Difference]: Finished difference Result 180 states and 258 transitions. [2024-11-14 03:02:02,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:02,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2024-11-14 03:02:02,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:02,616 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:02:02,616 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:02:02,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:02,618 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 100 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:02,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 341 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-14 03:02:02,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:02:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-14 03:02:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:02:02,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2024-11-14 03:02:02,629 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 102 [2024-11-14 03:02:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:02,629 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2024-11-14 03:02:02,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:02:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2024-11-14 03:02:02,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 03:02:02,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:02,632 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:02:02,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-14 03:02:02,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:02:02,833 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:02,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash 35278147, now seen corresponding path program 1 times [2024-11-14 03:02:02,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:02:02,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [31191157] [2024-11-14 03:02:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:02,834 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 03:02:02,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:02:02,839 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:02,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:03,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:02:03,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:03,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-14 03:02:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-14 03:02:03,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:02:03,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:02:03,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [31191157] [2024-11-14 03:02:03,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [31191157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:03,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:03,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:02:03,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761634421] [2024-11-14 03:02:03,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:03,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:02:03,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:02:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:02:03,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:02:03,868 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:02:07,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:10,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:11,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:11,801 INFO L93 Difference]: Finished difference Result 180 states and 256 transitions. [2024-11-14 03:02:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-14 03:02:11,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:11,804 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:02:11,804 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:02:11,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:11,805 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 91 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:11,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 336 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2024-11-14 03:02:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:02:11,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-14 03:02:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.3670886075949367) internal successors, (108), 79 states have internal predecessors, (108), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:02:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 128 transitions. [2024-11-14 03:02:11,816 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 128 transitions. Word has length 104 [2024-11-14 03:02:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:11,816 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 128 transitions. [2024-11-14 03:02:11,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:02:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 128 transitions. [2024-11-14 03:02:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-14 03:02:11,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:11,819 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:02:11,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:12,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:02:12,020 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:12,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash 678099753, now seen corresponding path program 1 times [2024-11-14 03:02:12,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:02:12,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952291659] [2024-11-14 03:02:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:12,021 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 03:02:12,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:02:12,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:12,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:02:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:12,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:02:12,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:13,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 41 [2024-11-14 03:02:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-14 03:02:13,179 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:02:13,180 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:02:13,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952291659] [2024-11-14 03:02:13,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952291659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:13,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:13,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:02:13,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524960814] [2024-11-14 03:02:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:13,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:02:13,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:02:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:02:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:02:13,183 INFO L87 Difference]: Start difference. First operand 91 states and 128 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:02:16,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:18,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:20,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:21,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:21,705 INFO L93 Difference]: Finished difference Result 180 states and 254 transitions. [2024-11-14 03:02:21,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:21,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 106 [2024-11-14 03:02:21,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:21,707 INFO L225 Difference]: With dead ends: 180 [2024-11-14 03:02:21,707 INFO L226 Difference]: Without dead ends: 92 [2024-11-14 03:02:21,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:02:21,708 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 82 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:21,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 332 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 03:02:21,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-14 03:02:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2024-11-14 03:02:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 79 states have internal predecessors, (107), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:02:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-11-14 03:02:21,718 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 106 [2024-11-14 03:02:21,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:21,719 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-11-14 03:02:21,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:02:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-11-14 03:02:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 03:02:21,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:21,722 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:02:21,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 03:02:21,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:02:21,923 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:21,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:21,923 INFO L85 PathProgramCache]: Analyzing trace with hash 917833989, now seen corresponding path program 1 times [2024-11-14 03:02:21,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:02:21,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928766582] [2024-11-14 03:02:21,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:21,924 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:02:21,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:02:21,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:21,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:22,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-14 03:02:22,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-14 03:02:22,487 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:02:22,487 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:02:22,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928766582] [2024-11-14 03:02:22,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928766582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:22,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:22,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:02:22,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223058971] [2024-11-14 03:02:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:22,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:02:22,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:02:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:02:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:02:22,490 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 03:02:22,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:22,757 INFO L93 Difference]: Finished difference Result 183 states and 256 transitions. [2024-11-14 03:02:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 03:02:22,759 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 108 [2024-11-14 03:02:22,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:22,760 INFO L225 Difference]: With dead ends: 183 [2024-11-14 03:02:22,760 INFO L226 Difference]: Without dead ends: 93 [2024-11-14 03:02:22,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:02:22,761 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 1 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:22,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 528 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:02:22,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-14 03:02:22,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2024-11-14 03:02:22,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 79 states have internal predecessors, (106), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:02:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 126 transitions. [2024-11-14 03:02:22,775 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 126 transitions. Word has length 108 [2024-11-14 03:02:22,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:22,776 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 126 transitions. [2024-11-14 03:02:22,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-14 03:02:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 126 transitions. [2024-11-14 03:02:22,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 03:02:22,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:22,779 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:02:22,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:22,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.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 03:02:22,979 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:22,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1815227267, now seen corresponding path program 1 times [2024-11-14 03:02:22,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:02:22,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582940006] [2024-11-14 03:02:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:22,980 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 03:02:22,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:02:22,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:22,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:02:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:23,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:02:23,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:23,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:24,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:25,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:25,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:26,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-14 03:02:26,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:26,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:27,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-14 03:02:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:02:27,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:27,571 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_176 (Array (_ BitVec 32) (_ BitVec 32)))) (not (bvule (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_176) |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|) (_ bv8 32)))) is different from false [2024-11-14 03:02:27,661 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:02:27,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582940006] [2024-11-14 03:02:27,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582940006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:27,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1641142904] [2024-11-14 03:02:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:27,661 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:02:27,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:02:27,666 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:02:27,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-14 03:02:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:28,909 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:02:28,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:29,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:29,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:30,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:30,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:30,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:31,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:31,608 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 18 treesize of output 13 [2024-11-14 03:02:31,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 03:02:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:02:31,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:32,027 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_205 (Array (_ BitVec 32) (_ BitVec 32)))) (not (bvule (select (select (store |c_#memory_int| |c_~#float_Array_0~0.base| v_ArrVal_205) |c_~#signed_long_int_Array_0~0.base|) |c_~#signed_long_int_Array_0~0.offset|) (_ bv8 32)))) is different from false [2024-11-14 03:02:32,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1641142904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:32,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456582624] [2024-11-14 03:02:32,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:32,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:02:32,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:32,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:02:32,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:02:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:33,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 03:02:33,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:36,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 32 [2024-11-14 03:02:36,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 52 [2024-11-14 03:02:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 49 proven. 67 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:02:37,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:37,930 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_228 (Array (_ BitVec 32) (_ BitVec 32)))) (fp.gt ((_ to_fp 8 24) c_currentRoundingMode (/ 4.0 5.0)) (fp.neg (let ((.cse0 (select (select (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_228) |c_~#float_Array_0~0.base|) (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) is different from false [2024-11-14 03:02:37,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456582624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:37,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:02:37,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 13] total 19 [2024-11-14 03:02:37,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23141203] [2024-11-14 03:02:37,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:02:37,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-14 03:02:37,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:02:37,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-14 03:02:37,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=460, Unknown=3, NotChecked=138, Total=702 [2024-11-14 03:02:37,956 INFO L87 Difference]: Start difference. First operand 91 states and 126 transitions. Second operand has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-14 03:02:45,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:49,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:51,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:55,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:57,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:02:59,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:01,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:03,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:05,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:08,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:11,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:03:13,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:13,737 INFO L93 Difference]: Finished difference Result 520 states and 717 transitions. [2024-11-14 03:03:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-14 03:03:13,738 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) Word has length 108 [2024-11-14 03:03:13,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:13,742 INFO L225 Difference]: With dead ends: 520 [2024-11-14 03:03:13,742 INFO L226 Difference]: Without dead ends: 432 [2024-11-14 03:03:13,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=452, Invalid=1719, Unknown=3, NotChecked=276, Total=2450 [2024-11-14 03:03:13,744 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 820 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 280 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:13,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 729 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 1393 Invalid, 4 Unknown, 0 Unchecked, 32.5s Time] [2024-11-14 03:03:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-14 03:03:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 307. [2024-11-14 03:03:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 261 states have (on average 1.2988505747126438) internal successors, (339), 263 states have internal predecessors, (339), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 36 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:03:13,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 415 transitions. [2024-11-14 03:03:13,804 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 415 transitions. Word has length 108 [2024-11-14 03:03:13,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:13,804 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 415 transitions. [2024-11-14 03:03:13,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 18 states have internal predecessors, (125), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 7 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-14 03:03:13,805 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 415 transitions. [2024-11-14 03:03:13,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-14 03:03:13,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:13,807 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:03:13,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-14 03:03:14,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-14 03:03:14,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:03:14,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:14,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:14,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:14,409 INFO L85 PathProgramCache]: Analyzing trace with hash 575304195, now seen corresponding path program 1 times [2024-11-14 03:03:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:03:14,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63628293] [2024-11-14 03:03:14,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:14,410 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 03:03:14,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:03:14,412 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -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 03:03:14,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-14 03:03:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:45,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-14 03:03:45,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:03:46,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-14 03:03:48,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 32 [2024-11-14 03:03:50,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 98 [2024-11-14 03:03:51,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 98 [2024-11-14 03:03:51,900 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:03:51,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 204 treesize of output 99 [2024-11-14 03:03:55,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 197 treesize of output 152 [2024-11-14 03:04:00,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-14 03:04:00,704 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 343 treesize of output 127 [2024-11-14 03:04:02,697 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 12 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:04:02,697 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:13,169 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_107| (_ BitVec 32)) (v_ArrVal_261 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)) (.cse6 (select |c_#memory_int| |c_~#float_Array_0~0.base|)) (.cse5 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|))) (or (let ((.cse1 (select (store (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse6 |c_~#float_Array_0~0.offset| |v_skolemized_q#valueAsBitvector_107|)) |c_~#double_Array_0~0.base| v_ArrVal_261) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp.sub c_currentRoundingMode (let ((.cse2 (select .cse1 .cse3))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (let ((.cse4 (select .cse1 .cse5))) (fp ((_ extract 31 31) .cse4) ((_ extract 30 23) .cse4) ((_ extract 22 0) .cse4)))))) (not (= (fp.sub c_currentRoundingMode (let ((.cse7 (select .cse6 .cse3))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) (let ((.cse8 (select .cse6 .cse5))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8)))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_107|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_107|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_107|))))))) is different from false [2024-11-14 03:04:17,305 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_107| (_ BitVec 32)) (v_ArrVal_261 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_259 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse9 (store |c_#memory_int| |c_~#unsigned_char_Array_0~0.base| v_ArrVal_259))) (let ((.cse2 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)) (.cse4 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)) (.cse1 (select .cse9 |c_~#float_Array_0~0.base|))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_107|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_107|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_107|)) (fp.sub c_currentRoundingMode (let ((.cse0 (select .cse1 .cse2))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse3 (select .cse1 .cse4))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))))) (let ((.cse6 (select (store (store .cse9 |c_~#float_Array_0~0.base| (store .cse1 |c_~#float_Array_0~0.offset| |v_skolemized_q#valueAsBitvector_107|)) |c_~#double_Array_0~0.base| v_ArrVal_261) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse5 (select .cse6 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (fp.sub c_currentRoundingMode (let ((.cse7 (select .cse6 .cse2))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) (let ((.cse8 (select .cse6 .cse4))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8)))))))))) is different from false [2024-11-14 03:04:20,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:04:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63628293] [2024-11-14 03:04:20,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63628293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:20,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1987345216] [2024-11-14 03:04:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:20,512 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:04:20,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:04:20,515 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:04:20,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-14 03:05:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:05:30,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-14 03:05:30,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:05:34,092 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 03:05:39,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 30 [2024-11-14 03:05:48,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 74 [2024-11-14 03:05:50,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 92 [2024-11-14 03:05:51,796 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 168 treesize of output 95 [2024-11-14 03:05:56,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 116 [2024-11-14 03:06:05,377 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 283 treesize of output 127 [2024-11-14 03:06:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 104 proven. 12 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-14 03:06:06,320 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:06:07,550 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_291 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store |c_#memory_int| |c_~#double_Array_0~0.base| v_ArrVal_291) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse0 (select .cse1 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp.sub c_currentRoundingMode (let ((.cse2 (select .cse1 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))) (let ((.cse3 (select .cse1 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))))) is different from false [2024-11-14 03:06:08,833 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_117| (_ BitVec 32)) (v_ArrVal_291 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv4 32) |c_~#float_Array_0~0.offset|)) (.cse4 (bvadd (_ bv8 32) |c_~#float_Array_0~0.offset|)) (.cse1 (select |c_#memory_int| |c_~#float_Array_0~0.base|))) (or (not (= (fp.sub c_currentRoundingMode (let ((.cse0 (select .cse1 .cse2))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (let ((.cse3 (select .cse1 .cse4))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3)))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_117|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_117|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_117|)))) (let ((.cse6 (select (store (store |c_#memory_int| |c_~#float_Array_0~0.base| (store .cse1 |c_~#float_Array_0~0.offset| |v_skolemized_q#valueAsBitvector_117|)) |c_~#double_Array_0~0.base| v_ArrVal_291) |c_~#float_Array_0~0.base|))) (fp.eq (let ((.cse5 (select .cse6 |c_~#float_Array_0~0.offset|))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))) (fp.sub c_currentRoundingMode (let ((.cse7 (select .cse6 .cse2))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))) (let ((.cse8 (select .cse6 .cse4))) (fp ((_ extract 31 31) .cse8) ((_ extract 30 23) .cse8) ((_ extract 22 0) .cse8))))))))) is different from false [2024-11-14 03:06:30,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1987345216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:06:30,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477784617] [2024-11-14 03:06:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:30,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:06:30,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:06:30,644 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:06:30,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4ec685d-128f-420e-a736-4452640c32e0/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process