./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh --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 c554ccc5a601f8437729d4334efbdb5f23a6f490bc0338089a1c3e75130cdbec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:36:18,973 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:36:19,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:36:19,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:36:19,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:36:19,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:36:19,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:36:19,063 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:36:19,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:36:19,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:36:19,065 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:36:19,066 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:36:19,066 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:36:19,067 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:36:19,067 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:36:19,068 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:36:19,068 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:36:19,068 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:36:19,069 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:36:19,069 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:36:19,070 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:36:19,070 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:36:19,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:36:19,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:36:19,072 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:36:19,072 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:36:19,073 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:36:19,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:36:19,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:36:19,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:36:19,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:36:19,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:36:19,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:36:19,075 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:36:19,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:36:19,075 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:36:19,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:36:19,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:36:19,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:36:19,076 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:36:19,076 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:36:19,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:36:19,078 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c554ccc5a601f8437729d4334efbdb5f23a6f490bc0338089a1c3e75130cdbec [2023-12-02 16:36:19,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:36:19,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:36:19,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:36:19,326 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:36:19,327 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:36:19,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:22,125 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:36:22,324 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:36:22,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:22,335 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/c18b8f860/b603d111ae894ad98870787e0e1a2bc8/FLAGbaf3da510 [2023-12-02 16:36:22,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/c18b8f860/b603d111ae894ad98870787e0e1a2bc8 [2023-12-02 16:36:22,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:36:22,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:36:22,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:36:22,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:36:22,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:36:22,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@594d8afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22, skipping insertion in model container [2023-12-02 16:36:22,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,396 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:36:22,517 WARN L240 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_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i[916,929] [2023-12-02 16:36:22,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:36:22,591 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:36:22,603 WARN L240 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_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i[916,929] [2023-12-02 16:36:22,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:36:22,662 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:36:22,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22 WrapperNode [2023-12-02 16:36:22,663 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:36:22,664 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:36:22,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:36:22,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:36:22,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,723 INFO L138 Inliner]: procedures = 29, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 454 [2023-12-02 16:36:22,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:36:22,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:36:22,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:36:22,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:36:22,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,758 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:36:22,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:36:22,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:36:22,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:36:22,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (1/1) ... [2023-12-02 16:36:22,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:36:22,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:36:22,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:36:22,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:36:22,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-12-02 16:36:22,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:36:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:36:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:36:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:36:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:36:22,957 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:36:22,959 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:36:23,429 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:36:24,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:36:24,019 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:36:24,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:36:24 BoogieIcfgContainer [2023-12-02 16:36:24,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:36:24,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:36:24,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:36:24,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:36:24,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:36:22" (1/3) ... [2023-12-02 16:36:24,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186fe701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:36:24, skipping insertion in model container [2023-12-02 16:36:24,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:22" (2/3) ... [2023-12-02 16:36:24,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186fe701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:36:24, skipping insertion in model container [2023-12-02 16:36:24,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:36:24" (3/3) ... [2023-12-02 16:36:24,030 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:24,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:36:24,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:36:24,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:36:24,105 INFO L357 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, mHoare=true, 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;@4eebc8a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:36:24,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:36:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 16:36:24,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 16:36:24,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:24,120 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:24,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:24,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:24,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1128632223, now seen corresponding path program 1 times [2023-12-02 16:36:24,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:36:24,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609132948] [2023-12-02 16:36:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:24,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:36:24,336 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-02 16:36:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656873285] [2023-12-02 16:36:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:36:24,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:36:24,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:36:24,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:36:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:36:25,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:36:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:36:26,024 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:36:26,027 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:36:26,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 16:36:26,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:36:26,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:36:26,241 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 16:36:26,244 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:36:26,299 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:36:26,301 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-12-02 16:36:26,302 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 16:36:26,303 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-12-02 16:36:26,304 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 16:36:26,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-12-02 16:36:26,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 16:36:26,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-12-02 16:36:26,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 16:36:26,308 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-12-02 16:36:26,309 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 16:36:26,310 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-12-02 16:36:26,311 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 16:36:26,312 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-12-02 16:36:26,313 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 16:36:26,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-12-02 16:36:26,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:36:26,316 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-12-02 16:36:26,316 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 16:36:26,317 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-12-02 16:36:26,318 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 16:36:26,318 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-12-02 16:36:26,318 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-12-02 16:36:26,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-12-02 16:36:26,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:36:26,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 16:36:26,319 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 16:36:26,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-12-02 16:36:26,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated [2023-12-02 16:36:26,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-12-02 16:36:26,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated [2023-12-02 16:36:26,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated [2023-12-02 16:36:26,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-12-02 16:36:26,322 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-12-02 16:36:26,322 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 16:36:26,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 16:36:26,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 16:36:26,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-12-02 16:36:26,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short79 could not be translated [2023-12-02 16:36:26,324 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 16:36:26,324 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated [2023-12-02 16:36:26,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated [2023-12-02 16:36:26,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated [2023-12-02 16:36:26,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short79 could not be translated [2023-12-02 16:36:26,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated [2023-12-02 16:36:26,326 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated [2023-12-02 16:36:26,326 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated [2023-12-02 16:36:26,326 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated [2023-12-02 16:36:26,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:36:26 BoogieIcfgContainer [2023-12-02 16:36:26,346 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:36:26,347 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:36:26,347 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:36:26,347 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:36:26,348 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:36:24" (3/4) ... [2023-12-02 16:36:26,350 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:36:26,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:36:26,352 INFO L158 Benchmark]: Toolchain (without parser) took 3994.18ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 98.0MB in the beginning and 96.2MB in the end (delta: 1.8MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-12-02 16:36:26,353 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:36:26,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.72ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 82.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 16:36:26,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.18ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 77.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 16:36:26,355 INFO L158 Benchmark]: Boogie Preprocessor took 52.63ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:36:26,356 INFO L158 Benchmark]: RCFGBuilder took 1243.18ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 74.9MB in the beginning and 94.1MB in the end (delta: -19.2MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2023-12-02 16:36:26,356 INFO L158 Benchmark]: TraceAbstraction took 2322.61ms. Allocated memory is still 172.0MB. Free memory was 93.0MB in the beginning and 97.3MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:36:26,357 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 172.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:36:26,360 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.72ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 82.6MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.18ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 77.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.63ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1243.18ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 74.9MB in the beginning and 94.1MB in the end (delta: -19.2MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2322.61ms. Allocated memory is still 172.0MB. Free memory was 93.0MB in the beginning and 97.3MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 172.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short68 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short71 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short80 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short76 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short79 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem75 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem77 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem74 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem78 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of shiftLeft at line 66, overapproximation of someUnaryDOUBLEoperation at line 43. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 10, 200, 56955, 32, 1, 8, 1, -0.6, 9.125, 50.5 }; [L47] unsigned short int* WrapperStruct00_var_1_1_Pointer = &(WrapperStruct00.var_1_1); [L48] unsigned short int* WrapperStruct00_var_1_5_Pointer = &(WrapperStruct00.var_1_5); [L49] unsigned short int* WrapperStruct00_var_1_6_Pointer = &(WrapperStruct00.var_1_6); [L50] unsigned short int* WrapperStruct00_var_1_7_Pointer = &(WrapperStruct00.var_1_7); [L51] unsigned short int* WrapperStruct00_var_1_8_Pointer = &(WrapperStruct00.var_1_8); [L52] unsigned short int* WrapperStruct00_var_1_9_Pointer = &(WrapperStruct00.var_1_9); [L53] unsigned char* WrapperStruct00_var_1_10_Pointer = &(WrapperStruct00.var_1_10); [L54] float* WrapperStruct00_var_1_11_Pointer = &(WrapperStruct00.var_1_11); [L55] float* WrapperStruct00_var_1_12_Pointer = &(WrapperStruct00.var_1_12); [L56] float* WrapperStruct00_var_1_13_Pointer = &(WrapperStruct00.var_1_13); [L57] unsigned short int last_1_WrapperStruct00_var_1_1 = 10; [L58] unsigned short int last_1_WrapperStruct00_var_1_9 = 8; [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] CALL updateLastVariables() [L110] EXPR WrapperStruct00.var_1_1 [L110] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_9 [L111] last_1_WrapperStruct00_var_1_9 = WrapperStruct00.var_1_9 [L121] RET updateLastVariables() [L122] CALL updateVariables() [L89] WrapperStruct00.var_1_5 = __VERIFIER_nondet_ushort() [L90] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L91] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L92] WrapperStruct00.var_1_6 = __VERIFIER_nondet_ushort() [L93] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L94] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L95] WrapperStruct00.var_1_7 = __VERIFIER_nondet_ushort() [L96] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 32767) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L98] WrapperStruct00.var_1_8 = __VERIFIER_nondet_ushort() [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L100] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 65534) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L101] WrapperStruct00.var_1_10 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 0) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L103] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 1) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L104] WrapperStruct00.var_1_12 = __VERIFIER_nondet_float() [L105] EXPR WrapperStruct00.var_1_12 [L105] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F [L105] EXPR WrapperStruct00.var_1_12 [L105] EXPR WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F [L105] EXPR (WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L105] CALL assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not((WrapperStruct00.var_1_12 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_12 <= -1.0e-20F) || (WrapperStruct00.var_1_12 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_12 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L106] WrapperStruct00.var_1_13 = __VERIFIER_nondet_float() [L107] EXPR WrapperStruct00.var_1_13 [L107] EXPR WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F [L107] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) [L107] EXPR WrapperStruct00.var_1_13 [L107] EXPR WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F [L107] EXPR WrapperStruct00.var_1_13 [L107] EXPR WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F [L107] EXPR (WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L107] CALL assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((WrapperStruct00.var_1_13 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_13 <= -1.0e-20F) || (WrapperStruct00.var_1_13 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_13 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L122] RET updateVariables() [L123] CALL step() [L62] COND TRUE last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1) [L63] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_8_Pointer) [L63] EXPR ((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))) [L63] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L63] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L63] EXPR ((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))) [L63] EXPR (((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))) [L63] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L63] EXPR (((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))) [L63] (*(WrapperStruct00_var_1_1_Pointer)) = (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))) [L65] EXPR \read(*WrapperStruct00_var_1_10_Pointer) [L65] (*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer))) [L65] COND TRUE (*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer))) [L66] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L66] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L66] EXPR ((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))) [L66] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L66] EXPR ((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)) [L66] COND FALSE !((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) [L73] (*(WrapperStruct00_var_1_9_Pointer)) = 2 [L78] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L78] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L78] COND TRUE (*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer)) [L79] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L79] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L79] COND FALSE !((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) [L82] EXPR \read(*WrapperStruct00_var_1_12_Pointer) [L82] (*(WrapperStruct00_var_1_11_Pointer)) = (*(WrapperStruct00_var_1_12_Pointer)) [L123] RET step() [L124] CALL, EXPR property() [L114] EXPR (last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1 [L114] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_8_Pointer) [L114] EXPR ((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))) [L114] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L114] EXPR ((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))) [L114] EXPR (((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))) [L114] EXPR \read(*WrapperStruct00_var_1_5_Pointer) [L114] EXPR (((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))) [L114] EXPR (last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1 [L114] EXPR ((last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1) && (((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer))))) [L114] EXPR \read(*WrapperStruct00_var_1_10_Pointer) [L114] EXPR (*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer))) [L114] EXPR ((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer)))) [L114] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L114] EXPR ((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))) [L114] EXPR \read(*WrapperStruct00_var_1_1_Pointer) [L114] EXPR ((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)) [L114] EXPR ((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2)) [L114] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L114] EXPR ((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2)) [L114] EXPR ((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer)))) [L114] EXPR ((last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1) && (((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer))))) [L114] EXPR (((last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1) && (((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer)))))) && (((*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer))) ? (((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) [L114] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_6_Pointer) [L114] EXPR ((*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer))) ? (((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer)))) [L114] EXPR \read(*WrapperStruct00_var_1_7_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_9_Pointer) [L114] EXPR ((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer)))) [L114] EXPR \read(*WrapperStruct00_var_1_11_Pointer) [L114] EXPR \read(*WrapperStruct00_var_1_12_Pointer) [L114] EXPR ((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer)))) [L114] EXPR ((*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer))) ? (((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer)))) [L114] EXPR (((last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1) && (((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer)))))) && (((*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer))) ? (((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) [L114-L115] return (((last_1_WrapperStruct00_var_1_9 <= (last_1_WrapperStruct00_var_1_9 * last_1_WrapperStruct00_var_1_1)) ? ((*(WrapperStruct00_var_1_1_Pointer)) == ((unsigned short int) (((((*(WrapperStruct00_var_1_5_Pointer))) > (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer))))))) ? ((*(WrapperStruct00_var_1_5_Pointer))) : (((((((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) > ((*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) - (*(WrapperStruct00_var_1_7_Pointer)))) : ((*(WrapperStruct00_var_1_8_Pointer)))))))))) : 1) && (((*(WrapperStruct00_var_1_10_Pointer)) || ((*(WrapperStruct00_var_1_6_Pointer)) == (*(WrapperStruct00_var_1_8_Pointer)))) ? (((*(WrapperStruct00_var_1_6_Pointer)) <= (((((0) < ((*(WrapperStruct00_var_1_1_Pointer)))) ? (0) : ((*(WrapperStruct00_var_1_1_Pointer))))) << (*(WrapperStruct00_var_1_1_Pointer)))) ? (((*(WrapperStruct00_var_1_10_Pointer)) && ((*(WrapperStruct00_var_1_1_Pointer)) == ((*(WrapperStruct00_var_1_6_Pointer)) * (*(WrapperStruct00_var_1_5_Pointer))))) ? ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer)))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_5_Pointer))))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) 2))) : ((*(WrapperStruct00_var_1_9_Pointer)) == ((unsigned short int) (*(WrapperStruct00_var_1_6_Pointer)))))) && (((*(WrapperStruct00_var_1_7_Pointer)) != (*(WrapperStruct00_var_1_6_Pointer))) ? (((*(WrapperStruct00_var_1_7_Pointer)) <= (*(WrapperStruct00_var_1_9_Pointer))) ? ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (((((*(WrapperStruct00_var_1_12_Pointer))) > ((*(WrapperStruct00_var_1_13_Pointer)))) ? ((*(WrapperStruct00_var_1_12_Pointer))) : ((*(WrapperStruct00_var_1_13_Pointer))))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) : ((*(WrapperStruct00_var_1_11_Pointer)) == ((float) (*(WrapperStruct00_var_1_12_Pointer))))) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] [L19] reach_error() VAL [WrapperStruct00={4:0}, WrapperStruct00_var_1_10_Pointer={4:12}, WrapperStruct00_var_1_11_Pointer={4:13}, WrapperStruct00_var_1_12_Pointer={4:17}, WrapperStruct00_var_1_13_Pointer={4:21}, WrapperStruct00_var_1_1_Pointer={4:0}, WrapperStruct00_var_1_5_Pointer={4:2}, WrapperStruct00_var_1_6_Pointer={4:4}, WrapperStruct00_var_1_7_Pointer={4:6}, WrapperStruct00_var_1_8_Pointer={4:8}, WrapperStruct00_var_1_9_Pointer={4:10}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_1=10, last_1_WrapperStruct00_var_1_9=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 12, 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=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 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 [2023-12-02 16:36:26,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh --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 c554ccc5a601f8437729d4334efbdb5f23a6f490bc0338089a1c3e75130cdbec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:36:28,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:36:28,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 16:36:28,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:36:28,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:36:28,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:36:28,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:36:28,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:36:28,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:36:28,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:36:28,414 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:36:28,415 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:36:28,415 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:36:28,416 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:36:28,416 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:36:28,417 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:36:28,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:36:28,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:36:28,419 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:36:28,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:36:28,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:36:28,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:36:28,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:36:28,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:36:28,422 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:36:28,422 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:36:28,423 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:36:28,423 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:36:28,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:36:28,424 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:36:28,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:36:28,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:36:28,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:36:28,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:36:28,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:36:28,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:36:28,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:36:28,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:36:28,427 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:36:28,428 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:36:28,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:36:28,428 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:36:28,428 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:36:28,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:36:28,429 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c554ccc5a601f8437729d4334efbdb5f23a6f490bc0338089a1c3e75130cdbec [2023-12-02 16:36:28,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:36:28,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:36:28,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:36:28,735 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:36:28,736 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:36:28,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:31,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:36:31,730 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:36:31,731 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:31,741 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/d4e37cce9/67dd6e6d192442878a96096bfff4cd3f/FLAG36f9a95b3 [2023-12-02 16:36:31,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/data/d4e37cce9/67dd6e6d192442878a96096bfff4cd3f [2023-12-02 16:36:31,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:36:31,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:36:31,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:36:31,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:36:31,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:36:31,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:36:31" (1/1) ... [2023-12-02 16:36:31,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6af71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:31, skipping insertion in model container [2023-12-02 16:36:31,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:36:31" (1/1) ... [2023-12-02 16:36:31,808 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:36:31,963 WARN L240 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_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i[916,929] [2023-12-02 16:36:32,019 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:36:32,037 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:36:32,050 WARN L240 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_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-2.i[916,929] [2023-12-02 16:36:32,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:36:32,106 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:36:32,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32 WrapperNode [2023-12-02 16:36:32,107 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:36:32,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:36:32,108 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:36:32,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:36:32,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,169 INFO L138 Inliner]: procedures = 33, calls = 155, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 445 [2023-12-02 16:36:32,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:36:32,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:36:32,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:36:32,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:36:32,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,189 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,190 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,218 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,227 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:36:32,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:36:32,229 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:36:32,229 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:36:32,230 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (1/1) ... [2023-12-02 16:36:32,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:36:32,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:36:32,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:36:32,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:36:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:36:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 16:36:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-12-02 16:36:32,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:36:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 16:36:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-12-02 16:36:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 16:36:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 16:36:32,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 16:36:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 16:36:32,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:36:32,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:36:32,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-12-02 16:36:32,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-12-02 16:36:32,433 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:36:32,435 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:36:33,062 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:36:33,103 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:36:33,103 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:36:33,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:36:33 BoogieIcfgContainer [2023-12-02 16:36:33,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:36:33,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:36:33,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:36:33,110 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:36:33,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:36:31" (1/3) ... [2023-12-02 16:36:33,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20087c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:36:33, skipping insertion in model container [2023-12-02 16:36:33,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:36:32" (2/3) ... [2023-12-02 16:36:33,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20087c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:36:33, skipping insertion in model container [2023-12-02 16:36:33,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:36:33" (3/3) ... [2023-12-02 16:36:33,113 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-2.i [2023-12-02 16:36:33,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:36:33,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:36:33,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:36:33,178 INFO L357 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, mHoare=true, 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;@1e5510c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:36:33,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:36:33,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 78 states have (on average 1.5) internal successors, (117), 79 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 16:36:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 16:36:33,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:33,196 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:33,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:33,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:33,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1987484341, now seen corresponding path program 1 times [2023-12-02 16:36:33,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:36:33,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386966792] [2023-12-02 16:36:33,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:33,217 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 [2023-12-02 16:36:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:36:33,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:36:33,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:36:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:33,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:36:33,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-12-02 16:36:33,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:36:33,551 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:36:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386966792] [2023-12-02 16:36:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386966792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:36:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:36:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:36:33,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542604991] [2023-12-02 16:36:33,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:36:33,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:36:33,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:36:33,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:36:33,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:36:33,588 INFO L87 Difference]: Start difference. First operand has 93 states, 78 states have (on average 1.5) internal successors, (117), 79 states have internal predecessors, (117), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:36:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:36:33,638 INFO L93 Difference]: Finished difference Result 183 states and 292 transitions. [2023-12-02 16:36:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:36:33,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 95 [2023-12-02 16:36:33,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:36:33,649 INFO L225 Difference]: With dead ends: 183 [2023-12-02 16:36:33,649 INFO L226 Difference]: Without dead ends: 91 [2023-12-02 16:36:33,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:36:33,656 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:36:33,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:36:33,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-02 16:36:33,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-02 16:36:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 77 states have (on average 1.4545454545454546) internal successors, (112), 77 states have internal predecessors, (112), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 16:36:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2023-12-02 16:36:33,704 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 95 [2023-12-02 16:36:33,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:36:33,704 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2023-12-02 16:36:33,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:36:33,705 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2023-12-02 16:36:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 16:36:33,710 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:33,710 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:33,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:36:33,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:33,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:33,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:33,913 INFO L85 PathProgramCache]: Analyzing trace with hash -67008631, now seen corresponding path program 1 times [2023-12-02 16:36:33,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:36:33,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889953848] [2023-12-02 16:36:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:33,915 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 [2023-12-02 16:36:33,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:36:33,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:36:33,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:36:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:34,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 16:36:34,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:34,263 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:36:34,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17 [2023-12-02 16:36:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:36:34,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:36:34,797 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:36:34,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889953848] [2023-12-02 16:36:34,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889953848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:36:34,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:36:34,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:36:34,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789778488] [2023-12-02 16:36:34,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:36:34,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 16:36:34,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:36:34,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 16:36:34,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 16:36:34,801 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:36:35,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:36:35,480 INFO L93 Difference]: Finished difference Result 272 states and 407 transitions. [2023-12-02 16:36:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 16:36:35,481 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2023-12-02 16:36:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:36:35,484 INFO L225 Difference]: With dead ends: 272 [2023-12-02 16:36:35,484 INFO L226 Difference]: Without dead ends: 182 [2023-12-02 16:36:35,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:36:35,487 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 114 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:36:35,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 297 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 16:36:35,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-02 16:36:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 151. [2023-12-02 16:36:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 124 states have (on average 1.4274193548387097) internal successors, (177), 124 states have internal predecessors, (177), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:36:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 225 transitions. [2023-12-02 16:36:35,518 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 225 transitions. Word has length 95 [2023-12-02 16:36:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:36:35,519 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 225 transitions. [2023-12-02 16:36:35,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:36:35,520 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 225 transitions. [2023-12-02 16:36:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 16:36:35,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:36:35,522 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:36:35,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:36:35,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:36:35,728 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:36:35,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:36:35,729 INFO L85 PathProgramCache]: Analyzing trace with hash -996979344, now seen corresponding path program 1 times [2023-12-02 16:36:35,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:36:35,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409021852] [2023-12-02 16:36:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:35,730 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 [2023-12-02 16:36:35,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:36:35,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:36:35,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:36:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:36,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 16:36:36,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:36,810 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 [2023-12-02 16:36:37,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:36:38,572 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 31 treesize of output 33 [2023-12-02 16:36:39,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-12-02 16:36:40,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-02 16:36:40,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2023-12-02 16:36:41,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 67 [2023-12-02 16:36:42,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 70 [2023-12-02 16:36:42,181 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:36:42,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 79 treesize of output 43 [2023-12-02 16:36:42,294 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 156 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 16:36:42,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:36:47,149 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:36:47,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409021852] [2023-12-02 16:36:47,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409021852] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:36:47,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1931028977] [2023-12-02 16:36:47,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:36:47,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:36:47,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:36:47,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 16:36:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:47,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 16:36:47,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:48,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:36:50,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:36:51,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-12-02 16:36:52,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2023-12-02 16:36:53,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2023-12-02 16:36:54,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2023-12-02 16:36:55,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 66 [2023-12-02 16:36:56,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2023-12-02 16:36:56,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 43 [2023-12-02 16:36:56,534 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 158 proven. 80 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 16:36:56,534 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:36:56,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1931028977] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:36:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056345850] [2023-12-02 16:36:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:36:56,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:36:56,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:36:56,833 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:36:56,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:36:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:36:56,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 42 conjunts are in the unsatisfiable core [2023-12-02 16:36:56,980 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:36:57,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:36:59,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:37:00,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 33 [2023-12-02 16:37:01,429 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 50 treesize of output 33 [2023-12-02 16:37:02,369 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 50 treesize of output 33 [2023-12-02 16:37:03,089 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 50 treesize of output 33 [2023-12-02 16:37:04,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 48 [2023-12-02 16:37:04,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-12-02 16:37:05,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:37:05,024 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 3 case distinctions, treesize of input 42 treesize of output 22 [2023-12-02 16:37:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 139 proven. 80 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-02 16:37:05,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:05,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056345850] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:37:05,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:37:05,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 18] total 50 [2023-12-02 16:37:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630896735] [2023-12-02 16:37:05,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:37:05,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-02 16:37:05,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:37:05,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-02 16:37:05,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2834, Unknown=2, NotChecked=0, Total=3192 [2023-12-02 16:37:05,350 INFO L87 Difference]: Start difference. First operand 151 states and 225 transitions. Second operand has 51 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 20 states have call successors, (34), 16 states have call predecessors, (34), 20 states have return successors, (34), 16 states have call predecessors, (34), 20 states have call successors, (34) [2023-12-02 16:37:23,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:37:23,756 INFO L93 Difference]: Finished difference Result 333 states and 464 transitions. [2023-12-02 16:37:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 16:37:23,757 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 20 states have call successors, (34), 16 states have call predecessors, (34), 20 states have return successors, (34), 16 states have call predecessors, (34), 20 states have call successors, (34) Word has length 101 [2023-12-02 16:37:23,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:37:23,760 INFO L225 Difference]: With dead ends: 333 [2023-12-02 16:37:23,760 INFO L226 Difference]: Without dead ends: 241 [2023-12-02 16:37:23,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 307 SyntacticMatches, 7 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2567 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=1102, Invalid=5868, Unknown=2, NotChecked=0, Total=6972 [2023-12-02 16:37:23,765 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 695 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 16:37:23,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 960 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 16:37:23,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-12-02 16:37:23,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 219. [2023-12-02 16:37:23,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 182 states have (on average 1.379120879120879) internal successors, (251), 182 states have internal predecessors, (251), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:37:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 299 transitions. [2023-12-02 16:37:23,809 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 299 transitions. Word has length 101 [2023-12-02 16:37:23,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:37:23,810 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 299 transitions. [2023-12-02 16:37:23,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 45 states have (on average 3.422222222222222) internal successors, (154), 46 states have internal predecessors, (154), 20 states have call successors, (34), 16 states have call predecessors, (34), 20 states have return successors, (34), 16 states have call predecessors, (34), 20 states have call successors, (34) [2023-12-02 16:37:23,811 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 299 transitions. [2023-12-02 16:37:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 16:37:23,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:37:23,814 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:37:23,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:37:24,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 16:37:24,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 16:37:24,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:37:24,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:37:24,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:37:24,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1814627794, now seen corresponding path program 1 times [2023-12-02 16:37:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:37:24,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892741560] [2023-12-02 16:37:24,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:24,418 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 [2023-12-02 16:37:24,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:37:24,419 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:37:24,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:37:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:37:24,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-02 16:37:24,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:37:25,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:37:26,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:37:28,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-12-02 16:37:29,175 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 38 treesize of output 36 [2023-12-02 16:37:30,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:37:31,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:37:32,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2023-12-02 16:37:32,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2023-12-02 16:37:33,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:37:33,321 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:37:33,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 34 [2023-12-02 16:37:33,424 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 163 proven. 80 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 16:37:33,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:37:41,531 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:37:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892741560] [2023-12-02 16:37:41,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892741560] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:37:41,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1704448527] [2023-12-02 16:37:41,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:37:41,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:37:41,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:37:41,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:37:41,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 16:37:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:37:42,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 16:37:42,364 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:37:43,284 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 [2023-12-02 16:37:44,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-02 16:37:46,735 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 42 treesize of output 29 [2023-12-02 16:37:47,899 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 42 treesize of output 29 [2023-12-02 16:37:48,886 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 42 treesize of output 29 [2023-12-02 16:37:49,763 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 42 treesize of output 29 [2023-12-02 16:37:50,811 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 31 treesize of output 33 [2023-12-02 16:37:51,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:37:51,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2023-12-02 16:37:51,961 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 55 treesize of output 31 [2023-12-02 16:37:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 137 proven. 80 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 16:37:52,050 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:38:17,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1704448527] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:38:17,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259552115] [2023-12-02 16:38:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:38:17,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:38:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:38:17,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:38:17,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 16:38:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:38:17,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 46 conjunts are in the unsatisfiable core [2023-12-02 16:38:17,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:38:18,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:38:19,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:38:20,123 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 38 treesize of output 36 [2023-12-02 16:38:21,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:38:23,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:38:24,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:38:25,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 43 [2023-12-02 16:38:25,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 46 [2023-12-02 16:38:26,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 53 [2023-12-02 16:38:27,014 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:38:27,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 26 [2023-12-02 16:38:27,037 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 139 proven. 80 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-02 16:38:27,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:39:21,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259552115] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:39:21,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:39:21,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 19] total 40 [2023-12-02 16:39:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869471325] [2023-12-02 16:39:21,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:39:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-12-02 16:39:21,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:39:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-12-02 16:39:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=474, Invalid=2245, Unknown=37, NotChecked=0, Total=2756 [2023-12-02 16:39:21,075 INFO L87 Difference]: Start difference. First operand 219 states and 299 transitions. Second operand has 41 states, 37 states have (on average 3.972972972972973) internal successors, (147), 39 states have internal predecessors, (147), 17 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (30), 13 states have call predecessors, (30), 17 states have call successors, (30) [2023-12-02 16:39:42,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:39:42,668 INFO L93 Difference]: Finished difference Result 481 states and 661 transitions. [2023-12-02 16:39:42,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 16:39:42,669 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 37 states have (on average 3.972972972972973) internal successors, (147), 39 states have internal predecessors, (147), 17 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (30), 13 states have call predecessors, (30), 17 states have call successors, (30) Word has length 101 [2023-12-02 16:39:42,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:39:42,672 INFO L225 Difference]: With dead ends: 481 [2023-12-02 16:39:42,672 INFO L226 Difference]: Without dead ends: 357 [2023-12-02 16:39:42,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 308 SyntacticMatches, 10 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2087 ImplicationChecksByTransitivity, 101.5s TimeCoverageRelationStatistics Valid=1533, Invalid=5570, Unknown=37, NotChecked=0, Total=7140 [2023-12-02 16:39:42,676 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 2178 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:39:42,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 990 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-12-02 16:39:42,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-12-02 16:39:42,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 234. [2023-12-02 16:39:42,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 197 states have (on average 1.3908629441624365) internal successors, (274), 197 states have internal predecessors, (274), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:39:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 322 transitions. [2023-12-02 16:39:42,717 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 322 transitions. Word has length 101 [2023-12-02 16:39:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:39:42,718 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 322 transitions. [2023-12-02 16:39:42,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 37 states have (on average 3.972972972972973) internal successors, (147), 39 states have internal predecessors, (147), 17 states have call successors, (30), 14 states have call predecessors, (30), 17 states have return successors, (30), 13 states have call predecessors, (30), 17 states have call successors, (30) [2023-12-02 16:39:42,718 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 322 transitions. [2023-12-02 16:39:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 16:39:42,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:39:42,720 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:39:42,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 [2023-12-02 16:39:42,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 16:39:43,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 16:39:43,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:39:43,322 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:39:43,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:39:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2087312492, now seen corresponding path program 1 times [2023-12-02 16:39:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:39:43,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905733494] [2023-12-02 16:39:43,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:43,323 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 [2023-12-02 16:39:43,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:39:43,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:39:43,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-02 16:39:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:43,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:39:43,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:39:43,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-02 16:39:44,339 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 [2023-12-02 16:39:44,876 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 [2023-12-02 16:39:45,395 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 [2023-12-02 16:39:45,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:39:46,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:47,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:47,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-12-02 16:39:47,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 16:39:48,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 16:39:48,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:39:48,195 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 3 case distinctions, treesize of input 41 treesize of output 21 [2023-12-02 16:39:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 96 proven. 44 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-02 16:39:48,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:39:51,777 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:39:51,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905733494] [2023-12-02 16:39:51,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905733494] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:39:51,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [13828502] [2023-12-02 16:39:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:51,777 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:39:51,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:39:51,778 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:39:51,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 16:39:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:52,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-02 16:39:52,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:39:53,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:39:53,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:54,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:54,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:55,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:56,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:56,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:39:57,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 16:39:57,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-02 16:39:57,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-02 16:39:57,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2023-12-02 16:39:57,954 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-02 16:39:57,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:39:58,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [13828502] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:39:58,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307394372] [2023-12-02 16:39:58,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:39:58,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:39:58,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:39:58,829 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:39:58,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 16:39:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:39:59,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 16:39:59,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:01,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-02 16:40:02,111 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 31 treesize of output 22 [2023-12-02 16:40:02,286 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 31 treesize of output 22 [2023-12-02 16:40:02,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:40:02,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:40:02,572 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 16:40:02,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:40:03,532 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 3886 treesize of output 3630 [2023-12-02 16:40:39,721 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:40:39,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307394372] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:40:39,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:40:39,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12, 12, 12] total 37 [2023-12-02 16:40:39,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355303828] [2023-12-02 16:40:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:40:39,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:40:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:40:39,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:40:39,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1219, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:40:39,724 INFO L87 Difference]: Start difference. First operand 234 states and 322 transitions. Second operand has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:40:48,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:40:58,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:40:58,145 INFO L93 Difference]: Finished difference Result 525 states and 748 transitions. [2023-12-02 16:40:58,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 16:40:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 101 [2023-12-02 16:40:58,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:40:58,150 INFO L225 Difference]: With dead ends: 525 [2023-12-02 16:40:58,150 INFO L226 Difference]: Without dead ends: 388 [2023-12-02 16:40:58,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 404 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=290, Invalid=1966, Unknown=0, NotChecked=0, Total=2256 [2023-12-02 16:40:58,152 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 707 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2023-12-02 16:40:58,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 510 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2023-12-02 16:40:58,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2023-12-02 16:40:58,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 298. [2023-12-02 16:40:58,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 261 states have (on average 1.4252873563218391) internal successors, (372), 261 states have internal predecessors, (372), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:40:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 420 transitions. [2023-12-02 16:40:58,202 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 420 transitions. Word has length 101 [2023-12-02 16:40:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:40:58,202 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 420 transitions. [2023-12-02 16:40:58,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:40:58,203 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 420 transitions. [2023-12-02 16:40:58,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:40:58,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:40:58,205 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:40:58,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 16:40:58,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-12-02 16:40:58,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-02 16:40:58,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:40:58,806 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:40:58,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:40:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash 858687954, now seen corresponding path program 1 times [2023-12-02 16:40:58,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:40:58,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273179244] [2023-12-02 16:40:58,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:40:58,807 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 [2023-12-02 16:40:58,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:40:58,808 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:40:58,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-12-02 16:40:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:40:59,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:40:59,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:40:59,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:40:59,130 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 50 treesize of output 62 [2023-12-02 16:40:59,234 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:40:59,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:40:59,234 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:40:59,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273179244] [2023-12-02 16:40:59,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273179244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:40:59,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:40:59,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:40:59,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113329709] [2023-12-02 16:40:59,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:40:59,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:40:59,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:40:59,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:40:59,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:40:59,236 INFO L87 Difference]: Start difference. First operand 298 states and 420 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:41:01,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:41:01,974 INFO L93 Difference]: Finished difference Result 570 states and 813 transitions. [2023-12-02 16:41:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 16:41:01,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-02 16:41:01,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:41:01,977 INFO L225 Difference]: With dead ends: 570 [2023-12-02 16:41:01,977 INFO L226 Difference]: Without dead ends: 398 [2023-12-02 16:41:01,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:41:01,979 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 210 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-02 16:41:01,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 360 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-02 16:41:01,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-12-02 16:41:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 301. [2023-12-02 16:41:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 264 states have (on average 1.428030303030303) internal successors, (377), 264 states have internal predecessors, (377), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:41:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 425 transitions. [2023-12-02 16:41:02,022 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 425 transitions. Word has length 103 [2023-12-02 16:41:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:41:02,022 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 425 transitions. [2023-12-02 16:41:02,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:41:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 425 transitions. [2023-12-02 16:41:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:41:02,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:41:02,023 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:41:02,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-02 16:41:02,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:41:02,224 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:41:02,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:41:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash 465660944, now seen corresponding path program 1 times [2023-12-02 16:41:02,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:41:02,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954686450] [2023-12-02 16:41:02,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:41:02,225 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 [2023-12-02 16:41:02,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:41:02,226 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:41:02,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-02 16:41:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:41:02,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 16:41:02,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:41:02,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:41:04,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:41:05,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:41:06,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-02 16:41:07,606 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-12-02 16:41:08,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:41:09,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:41:11,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2023-12-02 16:41:11,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2023-12-02 16:41:12,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2023-12-02 16:41:12,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:41:12,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 39 [2023-12-02 16:41:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 168 proven. 71 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 16:41:12,587 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:41:28,610 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:41:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954686450] [2023-12-02 16:41:28,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954686450] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:41:28,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2045217737] [2023-12-02 16:41:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:41:28,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:41:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:41:28,611 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:41:28,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 16:41:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:41:29,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-02 16:41:29,636 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:41:30,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:41:32,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2023-12-02 16:41:35,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2023-12-02 16:41:39,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2023-12-02 16:41:41,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2023-12-02 16:41:43,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2023-12-02 16:41:45,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 56 [2023-12-02 16:41:48,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 74 [2023-12-02 16:41:49,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2023-12-02 16:41:50,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 87 [2023-12-02 16:41:51,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 56 [2023-12-02 16:41:52,208 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 121 proven. 101 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-02 16:41:52,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:42:14,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2045217737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:42:14,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375687044] [2023-12-02 16:42:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:42:14,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:42:14,426 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:42:14,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-02 16:42:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:14,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 16:42:14,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:42:20,668 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 29 treesize of output 31 [2023-12-02 16:42:21,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:42:21,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2023-12-02 16:42:22,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:42:22,797 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 3 case distinctions, treesize of input 42 treesize of output 22 [2023-12-02 16:42:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:42:23,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:42:23,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375687044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:23,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 16:42:23,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19, 27] total 54 [2023-12-02 16:42:23,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881157013] [2023-12-02 16:42:23,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:23,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:42:23,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:42:23,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:42:23,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=4590, Unknown=14, NotChecked=0, Total=5112 [2023-12-02 16:42:23,175 INFO L87 Difference]: Start difference. First operand 301 states and 425 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:42:27,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:27,064 INFO L93 Difference]: Finished difference Result 564 states and 805 transitions. [2023-12-02 16:42:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 16:42:27,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-02 16:42:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:27,068 INFO L225 Difference]: With dead ends: 564 [2023-12-02 16:42:27,068 INFO L226 Difference]: Without dead ends: 389 [2023-12-02 16:42:27,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 284 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2407 ImplicationChecksByTransitivity, 52.4s TimeCoverageRelationStatistics Valid=604, Invalid=5082, Unknown=14, NotChecked=0, Total=5700 [2023-12-02 16:42:27,071 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 597 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:42:27,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 414 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-02 16:42:27,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-02 16:42:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 313. [2023-12-02 16:42:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 276 states have (on average 1.431159420289855) internal successors, (395), 276 states have internal predecessors, (395), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:42:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 443 transitions. [2023-12-02 16:42:27,127 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 443 transitions. Word has length 103 [2023-12-02 16:42:27,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:27,127 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 443 transitions. [2023-12-02 16:42:27,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:42:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 443 transitions. [2023-12-02 16:42:27,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:42:27,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:27,129 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:42:27,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-02 16:42:27,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-02 16:42:27,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 16:42:27,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:42:27,730 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:27,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:27,731 INFO L85 PathProgramCache]: Analyzing trace with hash -195004750, now seen corresponding path program 1 times [2023-12-02 16:42:27,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:42:27,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17797646] [2023-12-02 16:42:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:27,731 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 [2023-12-02 16:42:27,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:42:27,732 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:42:27,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-02 16:42:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:27,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 16:42:27,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:42:28,116 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:42:28,117 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 50 treesize of output 62 [2023-12-02 16:42:28,248 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:42:28,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:42:28,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:42:28,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17797646] [2023-12-02 16:42:28,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17797646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:42:28,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:42:28,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 16:42:28,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596861182] [2023-12-02 16:42:28,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:42:28,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 16:42:28,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:42:28,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 16:42:28,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 16:42:28,250 INFO L87 Difference]: Start difference. First operand 313 states and 443 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:42:29,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:42:29,650 INFO L93 Difference]: Finished difference Result 518 states and 738 transitions. [2023-12-02 16:42:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 16:42:29,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-02 16:42:29,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:42:29,654 INFO L225 Difference]: With dead ends: 518 [2023-12-02 16:42:29,654 INFO L226 Difference]: Without dead ends: 317 [2023-12-02 16:42:29,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 16:42:29,655 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 12 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 16:42:29,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 376 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 16:42:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2023-12-02 16:42:29,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2023-12-02 16:42:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 276 states have (on average 1.423913043478261) internal successors, (393), 276 states have internal predecessors, (393), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:42:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 441 transitions. [2023-12-02 16:42:29,700 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 441 transitions. Word has length 103 [2023-12-02 16:42:29,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:42:29,701 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 441 transitions. [2023-12-02 16:42:29,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:42:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 441 transitions. [2023-12-02 16:42:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 16:42:29,702 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:42:29,702 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:42:29,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-12-02 16:42:29,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:42:29,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:42:29,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:42:29,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1012653200, now seen corresponding path program 1 times [2023-12-02 16:42:29,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:42:29,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159261676] [2023-12-02 16:42:29,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:29,904 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 [2023-12-02 16:42:29,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:42:29,905 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:42:29,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-02 16:42:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:30,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 16:42:30,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:42:30,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:42:31,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:42:32,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:42:34,165 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 38 treesize of output 36 [2023-12-02 16:42:35,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:42:36,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:42:37,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:42:39,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2023-12-02 16:42:39,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2023-12-02 16:42:39,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 55 [2023-12-02 16:42:40,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:42:40,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 27 [2023-12-02 16:42:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 144 proven. 71 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-02 16:42:40,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:42:53,986 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:42:53,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159261676] [2023-12-02 16:42:53,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159261676] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:42:53,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119116458] [2023-12-02 16:42:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:42:53,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:42:53,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:42:53,988 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:42:53,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 16:42:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:42:54,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-02 16:42:54,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:42:55,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 16:42:58,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2023-12-02 16:43:01,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2023-12-02 16:43:05,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 68 [2023-12-02 16:43:08,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-12-02 16:43:10,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-12-02 16:43:12,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-12-02 16:43:16,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 74 [2023-12-02 16:43:17,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 86 [2023-12-02 16:43:18,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 93 [2023-12-02 16:43:19,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 62 [2023-12-02 16:43:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 121 proven. 101 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-02 16:43:20,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:43:38,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [119116458] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:43:38,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145555511] [2023-12-02 16:43:38,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:43:38,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:43:38,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:43:38,938 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:43:38,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-02 16:43:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:43:39,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 16:43:39,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:43:45,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2023-12-02 16:43:45,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 37 [2023-12-02 16:43:46,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 37 [2023-12-02 16:43:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 16:43:47,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:44:34,555 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-12-02 16:44:34,556 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 18731 treesize of output 17443 [2023-12-02 16:45:59,881 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:45:59,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145555511] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:45:59,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:45:59,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [18, 28, 14] total 73 [2023-12-02 16:45:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304794945] [2023-12-02 16:45:59,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:45:59,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 16:45:59,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:45:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 16:45:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=7184, Unknown=27, NotChecked=0, Total=8010 [2023-12-02 16:45:59,886 INFO L87 Difference]: Start difference. First operand 313 states and 441 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:46:07,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:23,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:24,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:26,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:28,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:30,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:32,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:38,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:41,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:42,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:45,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:55,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:46:57,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:47:00,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:47:02,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:47:26,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:47:26,419 INFO L93 Difference]: Finished difference Result 763 states and 1099 transitions. [2023-12-02 16:47:26,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 16:47:26,421 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 103 [2023-12-02 16:47:26,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:47:26,424 INFO L225 Difference]: With dead ends: 763 [2023-12-02 16:47:26,425 INFO L226 Difference]: Without dead ends: 581 [2023-12-02 16:47:26,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 366 SyntacticMatches, 5 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5619 ImplicationChecksByTransitivity, 132.5s TimeCoverageRelationStatistics Valid=1233, Invalid=13020, Unknown=27, NotChecked=0, Total=14280 [2023-12-02 16:47:26,431 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 876 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 29 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:47:26,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 1176 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2044 Invalid, 7 Unknown, 0 Unchecked, 54.9s Time] [2023-12-02 16:47:26,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2023-12-02 16:47:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 324. [2023-12-02 16:47:26,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 287 states have (on average 1.4285714285714286) internal successors, (410), 287 states have internal predecessors, (410), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:47:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 458 transitions. [2023-12-02 16:47:26,512 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 458 transitions. Word has length 103 [2023-12-02 16:47:26,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:47:26,513 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 458 transitions. [2023-12-02 16:47:26,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:47:26,513 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 458 transitions. [2023-12-02 16:47:26,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 16:47:26,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:47:26,514 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:47:26,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-02 16:47:26,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 16:47:26,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-02 16:47:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:47:27,115 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:47:27,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:47:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1886001464, now seen corresponding path program 1 times [2023-12-02 16:47:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:47:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084699374] [2023-12-02 16:47:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:47:27,116 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 [2023-12-02 16:47:27,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:47:27,117 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:47:27,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-02 16:47:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:47:27,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-02 16:47:27,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:47:28,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:47:29,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:47:30,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2023-12-02 16:47:31,025 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 31 treesize of output 33 [2023-12-02 16:47:32,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:47:32,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:47:33,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2023-12-02 16:47:33,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2023-12-02 16:47:34,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:47:34,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 41 [2023-12-02 16:47:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 156 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 16:47:34,308 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:47:37,182 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:47:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084699374] [2023-12-02 16:47:37,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084699374] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:47:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1695324670] [2023-12-02 16:47:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:47:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:47:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:47:37,183 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:47:37,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 16:47:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:47:37,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:47:37,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:47:38,822 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 [2023-12-02 16:47:40,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 16:47:41,546 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 31 treesize of output 33 [2023-12-02 16:47:42,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:47:43,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:47:44,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2023-12-02 16:47:45,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2023-12-02 16:47:45,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 57 [2023-12-02 16:47:45,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 33 [2023-12-02 16:47:46,020 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 132 proven. 80 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-02 16:47:46,021 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:47:46,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1695324670] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:47:46,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463897391] [2023-12-02 16:47:46,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:47:46,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:47:46,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:47:46,267 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:47:46,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-02 16:47:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:47:46,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 40 conjunts are in the unsatisfiable core [2023-12-02 16:47:46,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:47:47,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:47:48,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:47:51,007 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 50 treesize of output 33 [2023-12-02 16:47:52,216 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 47 treesize of output 41 [2023-12-02 16:47:53,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:47:54,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2023-12-02 16:47:55,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 48 [2023-12-02 16:47:55,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 55 [2023-12-02 16:47:56,270 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:47:56,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 32 [2023-12-02 16:47:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 163 proven. 80 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 16:47:56,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:47:56,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463897391] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:47:56,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:47:56,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 17] total 44 [2023-12-02 16:47:56,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30246730] [2023-12-02 16:47:56,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:47:56,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-12-02 16:47:56,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:47:56,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-12-02 16:47:56,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2291, Unknown=1, NotChecked=0, Total=2550 [2023-12-02 16:47:56,550 INFO L87 Difference]: Start difference. First operand 324 states and 458 transitions. Second operand has 45 states, 39 states have (on average 4.102564102564102) internal successors, (160), 42 states have internal predecessors, (160), 20 states have call successors, (34), 15 states have call predecessors, (34), 20 states have return successors, (34), 15 states have call predecessors, (34), 20 states have call successors, (34) [2023-12-02 16:48:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:48:11,848 INFO L93 Difference]: Finished difference Result 579 states and 819 transitions. [2023-12-02 16:48:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 16:48:11,849 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 39 states have (on average 4.102564102564102) internal successors, (160), 42 states have internal predecessors, (160), 20 states have call successors, (34), 15 states have call predecessors, (34), 20 states have return successors, (34), 15 states have call predecessors, (34), 20 states have call successors, (34) Word has length 104 [2023-12-02 16:48:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:48:11,851 INFO L225 Difference]: With dead ends: 579 [2023-12-02 16:48:11,851 INFO L226 Difference]: Without dead ends: 383 [2023-12-02 16:48:11,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 336 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1928 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=1015, Invalid=5464, Unknown=1, NotChecked=0, Total=6480 [2023-12-02 16:48:11,853 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 801 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:48:11,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 814 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-02 16:48:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2023-12-02 16:48:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 348. [2023-12-02 16:48:11,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 311 states have (on average 1.4083601286173633) internal successors, (438), 311 states have internal predecessors, (438), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:48:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 486 transitions. [2023-12-02 16:48:11,928 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 486 transitions. Word has length 104 [2023-12-02 16:48:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:48:11,929 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 486 transitions. [2023-12-02 16:48:11,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 39 states have (on average 4.102564102564102) internal successors, (160), 42 states have internal predecessors, (160), 20 states have call successors, (34), 15 states have call predecessors, (34), 20 states have return successors, (34), 15 states have call predecessors, (34), 20 states have call successors, (34) [2023-12-02 16:48:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 486 transitions. [2023-12-02 16:48:11,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 16:48:11,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:48:11,930 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:48:11,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-02 16:48:12,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-02 16:48:12,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 16:48:12,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 16:48:12,532 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:48:12,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:48:12,533 INFO L85 PathProgramCache]: Analyzing trace with hash -75045739, now seen corresponding path program 1 times [2023-12-02 16:48:12,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:48:12,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [508545570] [2023-12-02 16:48:12,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:12,533 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 [2023-12-02 16:48:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:48:12,534 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:48:12,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-02 16:48:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:12,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 16:48:12,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:48:12,742 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:48:12,742 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:48:12,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [508545570] [2023-12-02 16:48:12,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [508545570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:48:12,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:48:12,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:48:12,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961021951] [2023-12-02 16:48:12,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:48:12,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:48:12,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:48:12,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:48:12,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:48:12,744 INFO L87 Difference]: Start difference. First operand 348 states and 486 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:48:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:48:12,845 INFO L93 Difference]: Finished difference Result 559 states and 788 transitions. [2023-12-02 16:48:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:48:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 104 [2023-12-02 16:48:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:48:12,847 INFO L225 Difference]: With dead ends: 559 [2023-12-02 16:48:12,847 INFO L226 Difference]: Without dead ends: 359 [2023-12-02 16:48:12,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:48:12,848 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 25 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:48:12,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 259 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:48:12,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2023-12-02 16:48:12,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 349. [2023-12-02 16:48:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 312 states have (on average 1.4070512820512822) internal successors, (439), 312 states have internal predecessors, (439), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:48:12,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 487 transitions. [2023-12-02 16:48:12,917 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 487 transitions. Word has length 104 [2023-12-02 16:48:12,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:48:12,917 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 487 transitions. [2023-12-02 16:48:12,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:48:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 487 transitions. [2023-12-02 16:48:12,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 16:48:12,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:48:12,919 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:48:12,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-12-02 16:48:13,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:48:13,120 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:48:13,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:48:13,120 INFO L85 PathProgramCache]: Analyzing trace with hash -884392365, now seen corresponding path program 1 times [2023-12-02 16:48:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:48:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294051888] [2023-12-02 16:48:13,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:13,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 16:48:13,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:48:13,121 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:48:13,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-02 16:48:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:13,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 47 conjunts are in the unsatisfiable core [2023-12-02 16:48:13,409 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:14,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:48:15,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2023-12-02 16:48:17,024 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 42 treesize of output 29 [2023-12-02 16:48:18,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2023-12-02 16:48:19,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-12-02 16:48:20,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 35 [2023-12-02 16:48:21,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2023-12-02 16:48:22,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 56 [2023-12-02 16:48:22,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 66 [2023-12-02 16:48:23,142 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:48:23,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 56 [2023-12-02 16:48:23,356 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 161 proven. 80 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-02 16:48:23,357 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:26,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:48:26,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294051888] [2023-12-02 16:48:26,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [294051888] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:26,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [648150953] [2023-12-02 16:48:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:26,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:48:26,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:48:26,621 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:48:26,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 16:48:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:27,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 51 conjunts are in the unsatisfiable core [2023-12-02 16:48:27,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:28,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:48:30,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:48:32,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 36 [2023-12-02 16:48:34,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-12-02 16:48:36,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:48:37,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:48:38,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-12-02 16:48:39,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 66 [2023-12-02 16:48:40,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 76 [2023-12-02 16:48:41,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 59 [2023-12-02 16:48:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 163 proven. 80 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 16:48:41,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:41,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [648150953] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:41,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533542718] [2023-12-02 16:48:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:48:41,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:48:41,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:48:41,627 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:48:41,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-12-02 16:48:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:48:41,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 53 conjunts are in the unsatisfiable core [2023-12-02 16:48:41,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:48:42,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:48:44,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2023-12-02 16:48:47,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 41 [2023-12-02 16:48:49,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-12-02 16:48:50,888 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:48:51,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:48:53,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2023-12-02 16:48:53,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 66 [2023-12-02 16:48:54,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 77 [2023-12-02 16:48:55,608 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:48:55,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 104 treesize of output 60 [2023-12-02 16:48:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 142 proven. 104 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 16:48:55,641 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:48:56,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533542718] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:48:56,053 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:48:56,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 22, 24] total 55 [2023-12-02 16:48:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229022678] [2023-12-02 16:48:56,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 16:48:56,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-02 16:48:56,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:48:56,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-02 16:48:56,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=3301, Unknown=1, NotChecked=0, Total=3782 [2023-12-02 16:48:56,055 INFO L87 Difference]: Start difference. First operand 349 states and 487 transitions. Second operand has 56 states, 50 states have (on average 3.72) internal successors, (186), 51 states have internal predecessors, (186), 23 states have call successors, (34), 19 states have call predecessors, (34), 23 states have return successors, (35), 19 states have call predecessors, (35), 23 states have call successors, (35) [2023-12-02 16:49:15,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:49:15,550 INFO L93 Difference]: Finished difference Result 777 states and 1076 transitions. [2023-12-02 16:49:15,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-12-02 16:49:15,551 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 50 states have (on average 3.72) internal successors, (186), 51 states have internal predecessors, (186), 23 states have call successors, (34), 19 states have call predecessors, (34), 23 states have return successors, (35), 19 states have call predecessors, (35), 23 states have call successors, (35) Word has length 104 [2023-12-02 16:49:15,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:49:15,554 INFO L225 Difference]: With dead ends: 777 [2023-12-02 16:49:15,554 INFO L226 Difference]: Without dead ends: 576 [2023-12-02 16:49:15,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=1856, Invalid=7845, Unknown=1, NotChecked=0, Total=9702 [2023-12-02 16:49:15,557 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 2722 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:49:15,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2727 Valid, 860 Invalid, 2584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-12-02 16:49:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-02 16:49:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 414. [2023-12-02 16:49:15,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 377 states have (on average 1.4058355437665782) internal successors, (530), 377 states have internal predecessors, (530), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:49:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 578 transitions. [2023-12-02 16:49:15,638 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 578 transitions. Word has length 104 [2023-12-02 16:49:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:49:15,639 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 578 transitions. [2023-12-02 16:49:15,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 50 states have (on average 3.72) internal successors, (186), 51 states have internal predecessors, (186), 23 states have call successors, (34), 19 states have call predecessors, (34), 23 states have return successors, (35), 19 states have call predecessors, (35), 23 states have call successors, (35) [2023-12-02 16:49:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 578 transitions. [2023-12-02 16:49:15,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 16:49:15,641 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:49:15,641 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:49:15,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-02 16:49:15,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 16:49:16,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-12-02 16:49:16,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:49:16,245 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:49:16,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:49:16,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2105934356, now seen corresponding path program 1 times [2023-12-02 16:49:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:49:16,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284674556] [2023-12-02 16:49:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:49:16,246 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 [2023-12-02 16:49:16,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:49:16,247 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:49:16,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-02 16:49:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:49:16,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 16:49:16,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:49:18,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:49:19,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:49:19,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:49:20,396 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 24 treesize of output 12 [2023-12-02 16:49:21,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2023-12-02 16:49:21,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 16:49:21,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-12-02 16:49:21,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:49:21,834 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 3 case distinctions, treesize of input 41 treesize of output 21 [2023-12-02 16:49:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 96 proven. 44 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-02 16:49:22,054 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:49:25,630 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:49:25,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284674556] [2023-12-02 16:49:25,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284674556] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:49:25,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [516387709] [2023-12-02 16:49:25,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:49:25,630 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:49:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:49:25,631 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:49:25,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 16:49:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:49:26,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 16:49:26,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:49:28,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:49:29,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:49:30,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:49:30,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 16:49:31,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-02 16:49:32,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-02 16:49:32,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-02 16:49:32,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2023-12-02 16:49:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 120 proven. 44 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-12-02 16:49:33,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:49:33,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [516387709] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:49:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889310434] [2023-12-02 16:49:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:49:33,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:49:33,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:49:33,886 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:49:33,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-12-02 16:49:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:49:34,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 16:49:34,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:49:37,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-02 16:49:38,025 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 31 treesize of output 22 [2023-12-02 16:49:38,270 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 31 treesize of output 22 [2023-12-02 16:49:38,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:49:38,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 16:49:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2023-12-02 16:49:38,718 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:49:39,684 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 958 treesize of output 894 [2023-12-02 16:49:54,957 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-12-02 16:49:54,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889310434] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 16:49:54,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:49:54,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [14, 14, 14] total 43 [2023-12-02 16:49:54,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17724637] [2023-12-02 16:49:54,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:49:54,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 16:49:54,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:49:54,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 16:49:54,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=1674, Unknown=0, NotChecked=0, Total=1892 [2023-12-02 16:49:54,960 INFO L87 Difference]: Start difference. First operand 414 states and 578 transitions. Second operand has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:50:02,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:50:04,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:50:11,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-12-02 16:50:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:50:26,500 INFO L93 Difference]: Finished difference Result 855 states and 1209 transitions. [2023-12-02 16:50:26,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 16:50:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 105 [2023-12-02 16:50:26,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:50:26,503 INFO L225 Difference]: With dead ends: 855 [2023-12-02 16:50:26,503 INFO L226 Difference]: Without dead ends: 609 [2023-12-02 16:50:26,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 422 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1103 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=343, Invalid=2737, Unknown=0, NotChecked=0, Total=3080 [2023-12-02 16:50:26,504 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 553 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:50:26,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 873 Invalid, 1179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1159 Invalid, 1 Unknown, 0 Unchecked, 28.6s Time] [2023-12-02 16:50:26,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-12-02 16:50:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 476. [2023-12-02 16:50:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 439 states have (on average 1.4168564920273348) internal successors, (622), 439 states have internal predecessors, (622), 24 states have call successors, (24), 12 states have call predecessors, (24), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-02 16:50:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 670 transitions. [2023-12-02 16:50:26,568 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 670 transitions. Word has length 105 [2023-12-02 16:50:26,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:50:26,569 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 670 transitions. [2023-12-02 16:50:26,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 13 states have internal predecessors, (48), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2023-12-02 16:50:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 670 transitions. [2023-12-02 16:50:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 16:50:26,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:50:26,570 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:50:26,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-12-02 16:50:26,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 16:50:26,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-12-02 16:50:27,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:50:27,171 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:50:27,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:50:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash 46326099, now seen corresponding path program 1 times [2023-12-02 16:50:27,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:50:27,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139381787] [2023-12-02 16:50:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:27,172 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 [2023-12-02 16:50:27,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:50:27,173 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -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) [2023-12-02 16:50:27,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-02 16:50:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:50:27,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-02 16:50:27,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:50:27,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 16:50:28,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2023-12-02 16:50:29,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 16:50:31,324 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 29 treesize of output 31 [2023-12-02 16:50:32,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2023-12-02 16:50:34,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:50:35,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2023-12-02 16:50:37,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 73 [2023-12-02 16:50:37,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 76 [2023-12-02 16:50:38,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2023-12-02 16:50:39,032 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 16:50:39,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 61 [2023-12-02 16:50:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 192 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 16:50:39,170 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:50:59,820 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:50:59,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139381787] [2023-12-02 16:50:59,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139381787] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:50:59,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [163668138] [2023-12-02 16:50:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:59,821 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 16:50:59,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 16:50:59,822 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 16:50:59,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_509d9efa-10ff-4bb1-b821-d1b0f7e39a89/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 16:51:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:51:00,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-02 16:51:00,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:51:01,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-12-02 16:51:02,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2023-12-02 16:51:06,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52