./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje --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 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:46:28,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:46:28,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:46:28,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:46:28,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:46:29,006 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:46:29,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:46:29,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:46:29,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:46:29,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:46:29,012 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:46:29,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:46:29,013 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:46:29,013 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:46:29,014 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:46:29,014 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:46:29,015 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:46:29,015 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:46:29,018 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:46:29,019 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:46:29,019 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:46:29,020 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:46:29,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:46:29,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:46:29,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:46:29,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:46:29,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:46:29,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:46:29,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:46:29,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:46:29,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:46:29,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:46:29,030 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:46:29,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:46:29,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:46:29,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:46:29,031 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:46:29,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:46:29,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:29,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:46:29,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:46:29,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:46:29,034 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:46:29,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:46:29,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:46:29,036 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:46:29,037 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:46:29,037 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_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2024-11-09 06:46:29,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:46:29,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:46:29,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:46:29,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:46:29,387 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:46:29,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i Unable to find full path for "g++" [2024-11-09 06:46:31,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:46:31,952 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:46:31,953 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-11-09 06:46:31,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/8e66f6e8c/ed76f97e6af34c61a78e541af2678ae4/FLAG6a38a4d3d [2024-11-09 06:46:31,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/8e66f6e8c/ed76f97e6af34c61a78e541af2678ae4 [2024-11-09 06:46:31,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:46:31,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:46:31,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:31,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:46:31,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:46:31,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:31" (1/1) ... [2024-11-09 06:46:31,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b898c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:31, skipping insertion in model container [2024-11-09 06:46:31,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:31" (1/1) ... [2024-11-09 06:46:32,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:46:32,255 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-09 06:46:32,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:32,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:46:32,353 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-09 06:46:32,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:32,414 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:46:32,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32 WrapperNode [2024-11-09 06:46:32,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:32,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:32,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:46:32,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:46:32,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,441 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,493 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 557 [2024-11-09 06:46:32,493 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:32,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:46:32,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:46:32,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:46:32,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:46:32,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:46:32,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:46:32,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:46:32,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (1/1) ... [2024-11-09 06:46:32,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:32,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:46:32,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:46:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:46:32,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:46:32,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 06:46:32,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 06:46:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:46:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-09 06:46:32,669 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:46:32,669 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:46:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:46:32,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:46:32,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:46:32,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:46:32,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:46:33,704 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-09 06:46:33,704 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:46:34,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:46:34,289 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:46:34,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:34 BoogieIcfgContainer [2024-11-09 06:46:34,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:46:34,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:46:34,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:46:34,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:46:34,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:46:31" (1/3) ... [2024-11-09 06:46:34,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361a5945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:34, skipping insertion in model container [2024-11-09 06:46:34,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:32" (2/3) ... [2024-11-09 06:46:34,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361a5945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:34, skipping insertion in model container [2024-11-09 06:46:34,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:34" (3/3) ... [2024-11-09 06:46:34,301 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2024-11-09 06:46:34,322 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:46:34,323 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:46:34,406 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:46:34,414 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@456ee640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:46:34,414 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:46:34,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:46:34,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 06:46:34,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:34,434 INFO L215 NwaCegarLoop]: trace histogram [20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:34,435 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:34,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:34,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1760623738, now seen corresponding path program 1 times [2024-11-09 06:46:34,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:46:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037189859] [2024-11-09 06:46:34,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:46:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 06:46:40,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003952875] [2024-11-09 06:46:40,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:40,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:46:40,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:40,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:46:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:46:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:44,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:46:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:46:46,775 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:46:46,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:46:46,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:46:46,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:46:46,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 06:46:46,987 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:46:47,206 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:46:47,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:46:47 BoogieIcfgContainer [2024-11-09 06:46:47,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:46:47,211 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:46:47,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:46:47,212 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:46:47,213 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:34" (3/4) ... [2024-11-09 06:46:47,216 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:46:47,217 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:46:47,219 INFO L158 Benchmark]: Toolchain (without parser) took 15233.75ms. Allocated memory was 169.9MB in the beginning and 492.8MB in the end (delta: 323.0MB). Free memory was 132.5MB in the beginning and 340.9MB in the end (delta: -208.4MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,220 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:46:47,221 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.67ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 115.6MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.44ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 111.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,224 INFO L158 Benchmark]: Boogie Preprocessor took 63.69ms. Allocated memory is still 169.9MB. Free memory was 111.5MB in the beginning and 108.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,224 INFO L158 Benchmark]: RCFGBuilder took 1731.25ms. Allocated memory is still 169.9MB. Free memory was 108.6MB in the beginning and 119.2MB in the end (delta: -10.6MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,227 INFO L158 Benchmark]: TraceAbstraction took 12918.48ms. Allocated memory was 169.9MB in the beginning and 492.8MB in the end (delta: 323.0MB). Free memory was 118.2MB in the beginning and 340.9MB in the end (delta: -222.7MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. [2024-11-09 06:46:47,227 INFO L158 Benchmark]: Witness Printer took 6.31ms. Allocated memory is still 492.8MB. Free memory is still 340.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:46:47,230 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.67ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 115.6MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.44ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 111.5MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.69ms. Allocated memory is still 169.9MB. Free memory was 111.5MB in the beginning and 108.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1731.25ms. Allocated memory is still 169.9MB. Free memory was 108.6MB in the beginning and 119.2MB in the end (delta: -10.6MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12918.48ms. Allocated memory was 169.9MB in the beginning and 492.8MB in the end (delta: 323.0MB). Free memory was 118.2MB in the beginning and 340.9MB in the end (delta: -222.7MB). Peak memory consumption was 100.3MB. Max. memory is 16.1GB. * Witness Printer took 6.31ms. Allocated memory is still 492.8MB. Free memory is still 340.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of bitwiseAnd at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 67. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 0.9; [L23] double* var_1_1_Pointer = &(var_1_1); [L24] unsigned long int var_1_2 = 128; [L25] unsigned long int* var_1_2_Pointer = &(var_1_2); [L26] unsigned long int var_1_3 = 2941876006; [L27] unsigned long int* var_1_3_Pointer = &(var_1_3); [L28] unsigned long int var_1_5 = 256; [L29] unsigned long int* var_1_5_Pointer = &(var_1_5); [L30] float var_1_6 = 63.5; [L31] float* var_1_6_Pointer = &(var_1_6); [L32] float var_1_7 = -0.151; [L33] float* var_1_7_Pointer = &(var_1_7); [L34] float var_1_8 = 0.8; [L35] float* var_1_8_Pointer = &(var_1_8); [L36] double var_1_9 = 9.5; [L37] double* var_1_9_Pointer = &(var_1_9); [L38] unsigned char var_1_10 = 0; [L39] unsigned char* var_1_10_Pointer = &(var_1_10); [L40] unsigned char var_1_11 = 0; [L41] unsigned char* var_1_11_Pointer = &(var_1_11); [L42] unsigned char var_1_12 = 0; [L43] unsigned char* var_1_12_Pointer = &(var_1_12); [L44] signed short int var_1_13 = -2; [L45] signed short int* var_1_13_Pointer = &(var_1_13); [L46] unsigned char var_1_16 = 10; [L47] unsigned char* var_1_16_Pointer = &(var_1_16); [L48] unsigned short int var_1_17 = 8; [L49] unsigned short int* var_1_17_Pointer = &(var_1_17); [L50] unsigned char var_1_18 = 16; [L51] unsigned char* var_1_18_Pointer = &(var_1_18); [L52] unsigned char last_1_var_1_16 = 10; [L127] isInitial = 1 [L128] FCALL initially() [L129] COND TRUE 1 [L130] CALL updateLastVariables() [L120] EXPR \read(var_1_16) [L120] last_1_var_1_16 = var_1_16 [L130] RET updateLastVariables() [L131] CALL updateVariables() [L87] var_1_2 = __VERIFIER_nondet_ulong() [L88] EXPR \read(var_1_2) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L88] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] EXPR \read(var_1_2) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L89] CALL assume_abort_if_not(var_1_2 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_2 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L90] var_1_3 = __VERIFIER_nondet_ulong() [L91] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L91] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] EXPR \read(var_1_3) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L92] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L93] var_1_5 = __VERIFIER_nondet_ulong() [L94] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L94] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L95] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L96] EXPR \read(var_1_5) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L96] CALL assume_abort_if_not(var_1_5 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_5 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L97] var_1_6 = __VERIFIER_nondet_float() [L98] EXPR \read(var_1_6) [L98] EXPR var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F [L98] EXPR \read(var_1_6) [L98] EXPR var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F [L98] EXPR (var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L98] CALL assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not((var_1_6 >= -922337.2036854776000e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854776000e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L99] var_1_7 = __VERIFIER_nondet_float() [L100] EXPR \read(var_1_7) [L100] EXPR var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F [L100] EXPR \read(var_1_7) [L100] EXPR var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F [L100] EXPR (var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L100] CALL assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not((var_1_7 >= -922337.2036854776000e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854776000e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L101] var_1_8 = __VERIFIER_nondet_float() [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F [L102] EXPR (var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F ) [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F [L102] EXPR \read(var_1_8) [L102] EXPR var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F [L102] EXPR (var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L102] CALL assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not((var_1_8 >= -922337.2036854776000e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854776000e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L103] var_1_9 = __VERIFIER_nondet_double() [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR \read(var_1_9) [L104] EXPR var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F [L104] EXPR (var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F ) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L104] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L105] var_1_11 = __VERIFIER_nondet_uchar() [L106] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L106] CALL assume_abort_if_not(var_1_11 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(var_1_11 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L107] EXPR \read(var_1_11) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L107] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L108] var_1_12 = __VERIFIER_nondet_uchar() [L109] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L109] CALL assume_abort_if_not(var_1_12 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(var_1_12 >= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L110] EXPR \read(var_1_12) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L110] CALL assume_abort_if_not(var_1_12 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L110] RET assume_abort_if_not(var_1_12 <= 1) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L111] var_1_17 = __VERIFIER_nondet_ushort() [L112] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L112] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L113] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L113] CALL assume_abort_if_not(var_1_17 <= 65535) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L113] RET assume_abort_if_not(var_1_17 <= 65535) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L114] EXPR \read(var_1_17) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L114] CALL assume_abort_if_not(var_1_17 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(var_1_17 != 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L115] var_1_18 = __VERIFIER_nondet_uchar() [L116] EXPR \read(var_1_18) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L116] CALL assume_abort_if_not(var_1_18 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L116] RET assume_abort_if_not(var_1_18 >= 0) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L117] EXPR \read(var_1_18) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L117] CALL assume_abort_if_not(var_1_18 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(var_1_18 <= 254) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L131] RET updateVariables() [L132] CALL step() [L56] signed long int stepLocal_1 = last_1_var_1_16; [L57] EXPR \read(*var_1_3_Pointer) [L57] unsigned long int stepLocal_0 = (*(var_1_3_Pointer)); [L58] EXPR \read(*var_1_3_Pointer) [L58] COND TRUE stepLocal_1 <= ((*(var_1_3_Pointer)) - last_1_var_1_16) [L59] EXPR \read(*var_1_5_Pointer) [L59] EXPR (((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16) [L59] COND FALSE !(stepLocal_0 < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) [L64] EXPR \read(*var_1_9_Pointer) [L64] (*(var_1_1_Pointer)) = (*(var_1_9_Pointer)) [L67] EXPR \read(*var_1_1_Pointer) [L67] EXPR \read(*var_1_1_Pointer) [L67] COND TRUE (*(var_1_1_Pointer)) < (*(var_1_1_Pointer)) [L68] EXPR \read(*var_1_11_Pointer) [L68] EXPR (*(var_1_11_Pointer)) && (*(var_1_12_Pointer)) [L68] EXPR \read(*var_1_12_Pointer) [L68] EXPR (*(var_1_11_Pointer)) && (*(var_1_12_Pointer)) [L68] (*(var_1_10_Pointer)) = (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))) [L70] EXPR \read(*var_1_2_Pointer) [L70] EXPR \read(*var_1_5_Pointer) [L70] EXPR \read(*var_1_17_Pointer) [L70] EXPR (*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer))) [L70] unsigned long int stepLocal_2 = (*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer))); [L71] EXPR \read(*var_1_3_Pointer) [L71] COND FALSE !(stepLocal_2 > (*(var_1_3_Pointer))) [L78] EXPR \read(*var_1_18_Pointer) [L78] (*(var_1_16_Pointer)) = (*(var_1_18_Pointer)) [L80] EXPR \read(*var_1_10_Pointer) [L80] COND FALSE !((*(var_1_10_Pointer))) [L132] RET step() [L133] CALL, EXPR property() [L123] EXPR \read(*var_1_3_Pointer) [L123] EXPR (last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1 [L123] EXPR \read(*var_1_3_Pointer) [L123] EXPR \read(*var_1_5_Pointer) [L123] EXPR (((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16) [L123] EXPR ((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) [L123] EXPR \read(*var_1_1_Pointer) [L123] EXPR \read(*var_1_9_Pointer) [L123] EXPR ((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) [L123] EXPR (last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1 [L123] EXPR ((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1) [L123] EXPR (((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1) [L123] EXPR ((((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1)) && ((((*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer)))) > (*(var_1_3_Pointer))) ? ((! (*(var_1_10_Pointer))) ? ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer)))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) [L123-L124] return ((((last_1_var_1_16 <= ((*(var_1_3_Pointer)) - last_1_var_1_16)) ? (((*(var_1_3_Pointer)) < (((((last_1_var_1_16 / (*(var_1_5_Pointer)))) > (last_1_var_1_16)) ? ((last_1_var_1_16 / (*(var_1_5_Pointer)))) : (last_1_var_1_16)))) ? ((((*(var_1_6_Pointer)) + (*(var_1_7_Pointer))) > (*(var_1_8_Pointer))) ? ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer)))) : 1) : ((*(var_1_1_Pointer)) == ((double) (*(var_1_9_Pointer))))) : 1) && (((*(var_1_1_Pointer)) < (*(var_1_1_Pointer))) ? ((*(var_1_10_Pointer)) == ((unsigned char) (! ((*(var_1_11_Pointer)) && (*(var_1_12_Pointer)))))) : 1)) && ((*(var_1_10_Pointer)) ? (((*(var_1_12_Pointer)) || ((*(var_1_1_Pointer)) < ((*(var_1_1_Pointer)) * (*(var_1_1_Pointer))))) ? ((*(var_1_13_Pointer)) == ((signed short int) ((*(var_1_16_Pointer)) + (*(var_1_16_Pointer))))) : 1) : 1)) && ((((*(var_1_2_Pointer)) & ((*(var_1_5_Pointer)) / (*(var_1_17_Pointer)))) > (*(var_1_3_Pointer))) ? ((! (*(var_1_10_Pointer))) ? ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer)))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) : ((*(var_1_16_Pointer)) == ((unsigned char) (*(var_1_18_Pointer))))) ; [L133] RET, EXPR property() [L133] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] [L19] reach_error() VAL [isInitial=1, last_1_var_1_16=10, var_1_10={12:0}, var_1_10_Pointer={12:0}, var_1_11={13:0}, var_1_11_Pointer={13:0}, var_1_12={14:0}, var_1_12_Pointer={14:0}, var_1_13={15:0}, var_1_13_Pointer={15:0}, var_1_16={16:0}, var_1_16_Pointer={16:0}, var_1_17={17:0}, var_1_17_Pointer={17:0}, var_1_18={18:0}, var_1_18_Pointer={18:0}, var_1_1={4:0}, var_1_1_Pointer={4:0}, var_1_2={5:0}, var_1_2_Pointer={5:0}, var_1_3={6:0}, var_1_3_Pointer={6:0}, var_1_5={7:0}, var_1_5_Pointer={7:0}, var_1_6={8:0}, var_1_6_Pointer={8:0}, var_1_7={9:0}, var_1_7_Pointer={9:0}, var_1_8={10:0}, var_1_8_Pointer={10:0}, var_1_9={11:0}, var_1_9_Pointer={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 1, TraceHistogramMax: 20, 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=49occurred 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, 9.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:46:47,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje --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 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:46:49,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:46:49,972 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 06:46:49,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:46:49,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:46:50,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:46:50,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:46:50,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:46:50,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:46:50,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:46:50,027 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:46:50,028 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:46:50,028 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:46:50,029 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:46:50,031 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:46:50,031 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:46:50,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:46:50,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:46:50,033 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:46:50,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:46:50,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:46:50,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:46:50,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:46:50,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:46:50,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:46:50,040 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:46:50,040 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:46:50,041 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:46:50,041 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:46:50,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:46:50,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:46:50,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:46:50,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:46:50,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:46:50,043 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:46:50,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:50,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:46:50,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:46:50,044 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:46:50,044 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:46:50,044 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:46:50,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:46:50,045 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:46:50,045 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2024-11-09 06:46:50,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:46:50,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:46:50,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:46:50,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:46:50,533 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:46:50,534 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i Unable to find full path for "g++" [2024-11-09 06:46:52,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:46:52,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:46:52,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-11-09 06:46:52,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/71530cc69/0cc51e1bdda849b692c31412a2ee1127/FLAG79c22e1e8 [2024-11-09 06:46:53,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/data/71530cc69/0cc51e1bdda849b692c31412a2ee1127 [2024-11-09 06:46:53,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:46:53,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:46:53,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:53,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:46:53,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:46:53,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f570efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53, skipping insertion in model container [2024-11-09 06:46:53,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:46:53,482 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-09 06:46:53,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:53,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:46:53,680 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-11-09 06:46:53,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:46:53,764 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:46:53,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53 WrapperNode [2024-11-09 06:46:53,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:46:53,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:53,766 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:46:53,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:46:53,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,838 INFO L138 Inliner]: procedures = 39, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 540 [2024-11-09 06:46:53,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:46:53,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:46:53,839 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:46:53,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:46:53,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:46:53,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:46:53,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:46:53,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:46:53,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (1/1) ... [2024-11-09 06:46:53,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:46:53,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:46:53,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:46:53,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:46:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:46:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 06:46:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 06:46:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-11-09 06:46:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2024-11-09 06:46:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:46:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2024-11-09 06:46:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-09 06:46:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2024-11-09 06:46:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 06:46:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2024-11-09 06:46:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-09 06:46:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2024-11-09 06:46:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:46:54,007 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:46:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:46:54,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:46:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-11-09 06:46:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2024-11-09 06:46:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 06:46:54,217 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:46:54,220 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:46:56,524 INFO L? ?]: Removed 118 outVars from TransFormulas that were not future-live. [2024-11-09 06:46:56,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:46:56,543 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:46:56,543 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:46:56,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:56 BoogieIcfgContainer [2024-11-09 06:46:56,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:46:56,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:46:56,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:46:56,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:46:56,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:46:53" (1/3) ... [2024-11-09 06:46:56,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1531822d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:56, skipping insertion in model container [2024-11-09 06:46:56,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:46:53" (2/3) ... [2024-11-09 06:46:56,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1531822d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:46:56, skipping insertion in model container [2024-11-09 06:46:56,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:46:56" (3/3) ... [2024-11-09 06:46:56,557 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2024-11-09 06:46:56,573 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:46:56,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:46:56,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:46:56,649 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29fcb182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:46:56,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:46:56,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:46:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 06:46:56,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:56,680 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:56,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:56,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:56,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1137782526, now seen corresponding path program 1 times [2024-11-09 06:46:56,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:46:56,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964957326] [2024-11-09 06:46:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:56,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:56,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:46:56,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:46:56,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 06:46:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:57,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:46:57,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:57,327 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-09 06:46:57,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:46:57,328 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:46:57,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964957326] [2024-11-09 06:46:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [964957326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:57,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:57,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:46:57,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534437316] [2024-11-09 06:46:57,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:57,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:46:57,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:46:57,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:46:57,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:46:57,377 INFO L87 Difference]: Start difference. First operand has 121 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 99 states have internal predecessors, (140), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:46:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:57,425 INFO L93 Difference]: Finished difference Result 235 states and 374 transitions. [2024-11-09 06:46:57,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:46:57,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 157 [2024-11-09 06:46:57,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:57,438 INFO L225 Difference]: With dead ends: 235 [2024-11-09 06:46:57,439 INFO L226 Difference]: Without dead ends: 117 [2024-11-09 06:46:57,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:46:57,453 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:57,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:46:57,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-09 06:46:57,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-09 06:46:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 95 states have (on average 1.4) internal successors, (133), 95 states have internal predecessors, (133), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:46:57,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 173 transitions. [2024-11-09 06:46:57,533 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 173 transitions. Word has length 157 [2024-11-09 06:46:57,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:57,534 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 173 transitions. [2024-11-09 06:46:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:46:57,535 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 173 transitions. [2024-11-09 06:46:57,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 06:46:57,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:57,543 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:57,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 06:46:57,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:57,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:57,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash 604236126, now seen corresponding path program 1 times [2024-11-09 06:46:57,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:46:57,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1643327447] [2024-11-09 06:46:57,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:57,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:57,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:46:57,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:46:57,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 06:46:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:58,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:46:58,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:46:58,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:46:58,441 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:46:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1643327447] [2024-11-09 06:46:58,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1643327447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:58,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:58,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:46:58,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252411574] [2024-11-09 06:46:58,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:58,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:46:58,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:46:58,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:46:58,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:46:58,447 INFO L87 Difference]: Start difference. First operand 117 states and 173 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:46:58,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:58,572 INFO L93 Difference]: Finished difference Result 233 states and 346 transitions. [2024-11-09 06:46:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:46:58,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-11-09 06:46:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:58,579 INFO L225 Difference]: With dead ends: 233 [2024-11-09 06:46:58,580 INFO L226 Difference]: Without dead ends: 119 [2024-11-09 06:46:58,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:46:58,582 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:58,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 502 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:46:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-09 06:46:58,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-09 06:46:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 97 states have internal predecessors, (135), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:46:58,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2024-11-09 06:46:58,599 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 157 [2024-11-09 06:46:58,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:58,601 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2024-11-09 06:46:58,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:46:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2024-11-09 06:46:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-09 06:46:58,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:58,605 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:58,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-09 06:46:58,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:58,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:58,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:58,810 INFO L85 PathProgramCache]: Analyzing trace with hash -281561104, now seen corresponding path program 1 times [2024-11-09 06:46:58,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:46:58,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008801474] [2024-11-09 06:46:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:58,812 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:58,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:46:58,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:46:58,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-09 06:46:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:46:59,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:46:59,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:46:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:46:59,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:46:59,403 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:46:59,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008801474] [2024-11-09 06:46:59,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008801474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:46:59,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:46:59,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:46:59,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385341236] [2024-11-09 06:46:59,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:46:59,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:46:59,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:46:59,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:46:59,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:46:59,408 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:46:59,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:46:59,558 INFO L93 Difference]: Finished difference Result 238 states and 351 transitions. [2024-11-09 06:46:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:46:59,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-11-09 06:46:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:46:59,561 INFO L225 Difference]: With dead ends: 238 [2024-11-09 06:46:59,561 INFO L226 Difference]: Without dead ends: 122 [2024-11-09 06:46:59,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:46:59,564 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:46:59,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 663 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:46:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-09 06:46:59,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-09 06:46:59,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 100 states have (on average 1.38) internal successors, (138), 100 states have internal predecessors, (138), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 06:46:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 178 transitions. [2024-11-09 06:46:59,593 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 178 transitions. Word has length 159 [2024-11-09 06:46:59,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:46:59,594 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 178 transitions. [2024-11-09 06:46:59,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:46:59,595 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 178 transitions. [2024-11-09 06:46:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-09 06:46:59,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:46:59,598 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:46:59,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-09 06:46:59,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:59,799 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:46:59,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:46:59,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1694767619, now seen corresponding path program 1 times [2024-11-09 06:46:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:46:59,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878535438] [2024-11-09 06:46:59,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:46:59,802 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:46:59,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:46:59,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:46:59,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-09 06:47:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:00,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:47:00,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:01,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:47:03,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:47:06,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:08,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:08,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:09,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:10,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:10,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:11,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:11,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:12,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:12,716 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 15 treesize of output 7 [2024-11-09 06:47:12,845 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:47:12,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:13,406 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:47:13,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878535438] [2024-11-09 06:47:13,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878535438] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:13,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1510695819] [2024-11-09 06:47:13,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:13,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:47:13,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:47:13,411 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:47:13,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-09 06:47:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:15,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:47:15,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:16,460 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:47:16,460 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 25 treesize of output 22 [2024-11-09 06:47:18,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:47:20,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:22,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:23,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:24,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:24,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:25,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:26,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:27,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:27,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:47:28,163 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 15 treesize of output 7 [2024-11-09 06:47:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:47:28,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:47:28,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1510695819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:47:28,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301312443] [2024-11-09 06:47:28,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:28,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:47:28,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:47:28,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 06:47:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:29,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:47:29,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:29,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:47:32,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-09 06:47:32,792 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:47:32,792 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 52 treesize of output 45 [2024-11-09 06:47:34,425 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:47:34,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:47:34,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301312443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:47:34,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:47:34,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [18, 18] total 41 [2024-11-09 06:47:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309023273] [2024-11-09 06:47:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:47:34,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:47:34,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:47:34,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:47:34,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1679, Unknown=6, NotChecked=0, Total=1980 [2024-11-09 06:47:34,430 INFO L87 Difference]: Start difference. First operand 122 states and 178 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:47:39,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:47:41,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:47:43,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:47:45,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:47:47,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:47:49,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:47:55,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:47:55,136 INFO L93 Difference]: Finished difference Result 411 states and 601 transitions. [2024-11-09 06:47:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:47:55,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-09 06:47:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:47:55,140 INFO L225 Difference]: With dead ends: 411 [2024-11-09 06:47:55,140 INFO L226 Difference]: Without dead ends: 292 [2024-11-09 06:47:55,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 507 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=311, Invalid=1939, Unknown=6, NotChecked=0, Total=2256 [2024-11-09 06:47:55,143 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 153 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:47:55,144 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 701 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 683 Invalid, 5 Unknown, 0 Unchecked, 18.6s Time] [2024-11-09 06:47:55,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-09 06:47:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 203. [2024-11-09 06:47:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 160 states have (on average 1.36875) internal successors, (219), 160 states have internal predecessors, (219), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:47:55,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 299 transitions. [2024-11-09 06:47:55,173 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 299 transitions. Word has length 160 [2024-11-09 06:47:55,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:47:55,174 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 299 transitions. [2024-11-09 06:47:55,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:47:55,175 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 299 transitions. [2024-11-09 06:47:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-09 06:47:55,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:47:55,178 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:47:55,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-09 06:47:55,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-09 06:47:55,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 06:47:55,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:47:55,779 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:47:55,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:47:55,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2013393663, now seen corresponding path program 1 times [2024-11-09 06:47:55,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:47:55,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944044338] [2024-11-09 06:47:55,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:47:55,781 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:47:55,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:47:55,782 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:47:55,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-09 06:47:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:47:56,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:47:56,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:47:56,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:47:58,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:48:00,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:02,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:03,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:03,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:04,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:05,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:05,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:06,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:06,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:07,191 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 15 treesize of output 7 [2024-11-09 06:48:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:48:07,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:07,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:48:07,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944044338] [2024-11-09 06:48:07,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944044338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:07,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [569529190] [2024-11-09 06:48:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:07,804 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:48:07,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:48:07,806 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:48:07,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-09 06:48:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:09,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:48:09,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:10,685 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:48:10,685 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 25 treesize of output 22 [2024-11-09 06:48:12,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:48:14,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:16,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:17,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:18,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:19,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:20,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:21,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:21,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:22,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:48:23,358 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 15 treesize of output 7 [2024-11-09 06:48:23,371 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:48:23,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:48:23,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [569529190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:48:23,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260240173] [2024-11-09 06:48:23,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:23,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:48:23,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:48:23,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:48:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 06:48:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:24,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 06:48:24,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:24,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:48:27,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 17 [2024-11-09 06:48:27,612 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 21 treesize of output 13 [2024-11-09 06:48:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:48:27,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:48:27,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260240173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:48:27,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:48:27,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18, 18] total 40 [2024-11-09 06:48:27,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229104533] [2024-11-09 06:48:27,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:48:27,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:48:27,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:48:27,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:48:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=1592, Unknown=7, NotChecked=0, Total=1892 [2024-11-09 06:48:27,775 INFO L87 Difference]: Start difference. First operand 203 states and 299 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:31,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:33,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:35,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:37,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:39,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:43,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:48:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:44,149 INFO L93 Difference]: Finished difference Result 405 states and 591 transitions. [2024-11-09 06:48:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:48:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-09 06:48:44,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:44,152 INFO L225 Difference]: With dead ends: 405 [2024-11-09 06:48:44,153 INFO L226 Difference]: Without dead ends: 284 [2024-11-09 06:48:44,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 508 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 838 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=303, Invalid=1760, Unknown=7, NotChecked=0, Total=2070 [2024-11-09 06:48:44,155 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 142 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:44,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 608 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2024-11-09 06:48:44,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-09 06:48:44,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 201. [2024-11-09 06:48:44,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.360759493670886) internal successors, (215), 158 states have internal predecessors, (215), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:48:44,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 295 transitions. [2024-11-09 06:48:44,192 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 295 transitions. Word has length 160 [2024-11-09 06:48:44,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:44,193 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 295 transitions. [2024-11-09 06:48:44,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:44,194 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 295 transitions. [2024-11-09 06:48:44,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-09 06:48:44,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:44,196 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:44,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 06:48:44,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-09 06:48:44,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-09 06:48:44,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:44,798 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:48:44,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:44,798 INFO L85 PathProgramCache]: Analyzing trace with hash -297714276, now seen corresponding path program 1 times [2024-11-09 06:48:44,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:48:44,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [477334355] [2024-11-09 06:48:44,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:44,800 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:44,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:48:44,801 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:48:44,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-09 06:48:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:45,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:48:45,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:45,279 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:48:45,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:48:45,279 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:48:45,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [477334355] [2024-11-09 06:48:45,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [477334355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:48:45,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:48:45,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:48:45,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345870602] [2024-11-09 06:48:45,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:48:45,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:48:45,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:48:45,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:48:45,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:48:45,283 INFO L87 Difference]: Start difference. First operand 201 states and 295 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:45,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:45,391 INFO L93 Difference]: Finished difference Result 323 states and 474 transitions. [2024-11-09 06:48:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:48:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-09 06:48:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:45,397 INFO L225 Difference]: With dead ends: 323 [2024-11-09 06:48:45,398 INFO L226 Difference]: Without dead ends: 204 [2024-11-09 06:48:45,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:48:45,400 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 0 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:45,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 664 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:48:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-09 06:48:45,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2024-11-09 06:48:45,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 161 states have (on average 1.3540372670807452) internal successors, (218), 161 states have internal predecessors, (218), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:48:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 298 transitions. [2024-11-09 06:48:45,440 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 298 transitions. Word has length 161 [2024-11-09 06:48:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:45,443 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 298 transitions. [2024-11-09 06:48:45,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:45,443 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 298 transitions. [2024-11-09 06:48:45,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-09 06:48:45,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:45,448 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:45,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-09 06:48:45,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:45,649 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:48:45,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:45,650 INFO L85 PathProgramCache]: Analyzing trace with hash 906366325, now seen corresponding path program 1 times [2024-11-09 06:48:45,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:48:45,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054061651] [2024-11-09 06:48:45,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:45,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:48:45,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:48:45,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-09 06:48:46,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:46,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:48:46,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:46,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:48:46,119 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 91 treesize of output 31 [2024-11-09 06:48:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:48:46,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:48:46,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:48:46,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054061651] [2024-11-09 06:48:46,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054061651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:48:46,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:48:46,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:48:46,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009001417] [2024-11-09 06:48:46,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:48:46,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:48:46,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:48:46,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:48:46,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:48:46,181 INFO L87 Difference]: Start difference. First operand 204 states and 298 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:46,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:48:46,250 INFO L93 Difference]: Finished difference Result 323 states and 472 transitions. [2024-11-09 06:48:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:48:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2024-11-09 06:48:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:48:46,254 INFO L225 Difference]: With dead ends: 323 [2024-11-09 06:48:46,254 INFO L226 Difference]: Without dead ends: 201 [2024-11-09 06:48:46,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:48:46,255 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:48:46,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 332 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:48:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-09 06:48:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2024-11-09 06:48:46,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 158 states have (on average 1.3481012658227849) internal successors, (213), 158 states have internal predecessors, (213), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:48:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 293 transitions. [2024-11-09 06:48:46,270 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 293 transitions. Word has length 161 [2024-11-09 06:48:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:48:46,271 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 293 transitions. [2024-11-09 06:48:46,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:48:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 293 transitions. [2024-11-09 06:48:46,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:48:46,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:48:46,274 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:48:46,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:48:46,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:46,475 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:48:46,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:48:46,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1263508739, now seen corresponding path program 1 times [2024-11-09 06:48:46,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:48:46,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [780039058] [2024-11-09 06:48:46,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:48:46,477 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:48:46,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:48:46,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:48:46,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-09 06:48:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:48:47,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 06:48:47,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:48:48,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:48:54,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:48:56,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:48:56,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:48:57,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:48:58,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:48:59,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:00,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:01,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:01,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:02,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:02,317 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 16 treesize of output 8 [2024-11-09 06:49:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 06:49:02,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:08,205 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_356 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_356) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2024-11-09 06:49:09,293 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_355 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_356 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_355) c_~var_1_16_Pointer~0.base v_ArrVal_356) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2024-11-09 06:49:10,803 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:49:10,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [780039058] [2024-11-09 06:49:10,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [780039058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:10,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2061541077] [2024-11-09 06:49:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:10,804 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:49:10,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:49:10,805 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:49:10,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-09 06:49:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:13,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 06:49:13,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:14,728 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 25 treesize of output 13 [2024-11-09 06:49:18,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:49:23,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:25,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:26,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:27,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:28,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:29,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:30,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:32,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:33,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:33,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:49:34,039 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 16 treesize of output 8 [2024-11-09 06:49:34,149 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 06:49:34,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:49:35,567 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_396 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_396) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2024-11-09 06:49:36,684 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_396 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_395) c_~var_1_16_Pointer~0.base v_ArrVal_396) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2024-11-09 06:49:37,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2061541077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:49:37,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16425975] [2024-11-09 06:49:37,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:49:37,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:49:37,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:49:37,905 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:49:37,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 06:49:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:49:39,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 06:49:39,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:49:47,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-09 06:49:51,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 06:49:53,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 06:49:55,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 06:49:57,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 06:49:58,427 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 152 treesize of output 94 [2024-11-09 06:49:59,666 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 160 treesize of output 122 [2024-11-09 06:50:00,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:50:00,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 134 [2024-11-09 06:50:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 583 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-09 06:50:02,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:50:05,194 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_435 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_435))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_1_Pointer~0.offset)) (select .cse1 c_~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_9_Pointer~0.base))) (concat (select .cse4 (bvadd c_~var_1_9_Pointer~0.offset (_ bv4 32))) (select .cse4 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) is different from false [2024-11-09 06:50:05,319 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_1_Pointer~0.offset (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_93| (_ BitVec 64)) (v_ArrVal_435 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd c_~var_1_9_Pointer~0.offset (_ bv4 32)))) (or (not (= (let ((.cse0 (let ((.cse1 (select |c_#memory_int| c_~var_1_9_Pointer~0.base))) (concat (select .cse1 .cse2) (select .cse1 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_93|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_93|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_93|)))) (let ((.cse5 (bvadd (_ bv4 32) ~var_1_1_Pointer~0.offset))) (let ((.cse6 (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_93|)) .cse5 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_93|))) c_~var_1_16_Pointer~0.base v_ArrVal_435))) (fp.eq (let ((.cse3 (let ((.cse4 (select .cse6 c_~var_1_1_Pointer~0.base))) (concat (select .cse4 .cse5) (select .cse4 ~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))) (let ((.cse7 (let ((.cse8 (select .cse6 c_~var_1_9_Pointer~0.base))) (concat (select .cse8 .cse2) (select .cse8 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7))))))))) is different from false [2024-11-09 06:50:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16425975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:50:05,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:50:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 17] total 52 [2024-11-09 06:50:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281970305] [2024-11-09 06:50:05,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:50:05,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-09 06:50:05,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:50:05,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-09 06:50:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=2960, Unknown=6, NotChecked=702, Total=4032 [2024-11-09 06:50:05,621 INFO L87 Difference]: Start difference. First operand 201 states and 293 transitions. Second operand has 53 states, 51 states have (on average 4.823529411764706) internal successors, (246), 48 states have internal predecessors, (246), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) [2024-11-09 06:50:28,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:50:30,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:50:35,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:50:39,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:50:40,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:50:42,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:50:53,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:50:54,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:51:02,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:51:05,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:51:16,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:51:19,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:28,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 06:51:29,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:51:29,263 INFO L93 Difference]: Finished difference Result 708 states and 1004 transitions. [2024-11-09 06:51:29,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-09 06:51:29,265 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 51 states have (on average 4.823529411764706) internal successors, (246), 48 states have internal predecessors, (246), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) Word has length 162 [2024-11-09 06:51:29,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:51:29,269 INFO L225 Difference]: With dead ends: 708 [2024-11-09 06:51:29,269 INFO L226 Difference]: Without dead ends: 589 [2024-11-09 06:51:29,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 3060 ImplicationChecksByTransitivity, 55.7s TimeCoverageRelationStatistics Valid=1621, Invalid=9527, Unknown=6, NotChecked=1278, Total=12432 [2024-11-09 06:51:29,275 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 2000 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 4574 mSolverCounterSat, 536 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 4574 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:51:29,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 2512 Invalid, 5115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [536 Valid, 4574 Invalid, 5 Unknown, 0 Unchecked, 55.0s Time] [2024-11-09 06:51:29,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-09 06:51:29,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 307. [2024-11-09 06:51:29,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 241 states have internal predecessors, (331), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:51:29,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 451 transitions. [2024-11-09 06:51:29,335 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 451 transitions. Word has length 162 [2024-11-09 06:51:29,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:51:29,336 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 451 transitions. [2024-11-09 06:51:29,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 51 states have (on average 4.823529411764706) internal successors, (246), 48 states have internal predecessors, (246), 26 states have call successors, (60), 26 states have call predecessors, (60), 27 states have return successors, (60), 26 states have call predecessors, (60), 26 states have call successors, (60) [2024-11-09 06:51:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 451 transitions. [2024-11-09 06:51:29,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:51:29,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:51:29,339 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:51:29,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-09 06:51:29,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-09 06:51:29,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 06:51:29,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:29,941 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:51:29,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:51:29,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1539958075, now seen corresponding path program 1 times [2024-11-09 06:51:29,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:51:29,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964651089] [2024-11-09 06:51:29,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:29,942 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:51:29,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:51:29,944 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:51:29,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-09 06:51:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:30,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:51:30,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:31,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:33,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:34,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:36,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:37,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:38,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:38,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:39,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:40,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:40,638 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 17 treesize of output 12 [2024-11-09 06:51:41,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:41,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:51:41,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:51:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:51:41,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:41,978 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_474 (Array (_ BitVec 32) (_ BitVec 32)))) (= ((_ extract 7 0) (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_474) c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) ((_ extract 7 0) ((_ sign_extend 24) (_ bv0 8))))) is different from false [2024-11-09 06:51:42,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:51:42,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964651089] [2024-11-09 06:51:42,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964651089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:42,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [602729564] [2024-11-09 06:51:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:42,074 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:51:42,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:51:42,077 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:51:42,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-09 06:51:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:44,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:51:44,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:51:45,126 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:51:45,126 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 25 treesize of output 22 [2024-11-09 06:51:47,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:51:49,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:51,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:52,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:53,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:54,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:55,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:55,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:56,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:57,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:51:58,126 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 15 treesize of output 7 [2024-11-09 06:51:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:51:58,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:51:59,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [602729564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:51:59,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625996044] [2024-11-09 06:51:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:51:59,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:51:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:51:59,055 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:51:59,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 06:51:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:51:59,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-09 06:51:59,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:00,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:52:04,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-09 06:52:04,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 17 [2024-11-09 06:52:05,490 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:52:05,491 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 52 treesize of output 45 [2024-11-09 06:52:08,836 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:52:08,836 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:52:08,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625996044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:52:08,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:52:08,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [15, 18] total 40 [2024-11-09 06:52:08,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638865389] [2024-11-09 06:52:08,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:52:08,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:52:08,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:52:08,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:52:08,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=1722, Unknown=7, NotChecked=86, Total=2070 [2024-11-09 06:52:08,839 INFO L87 Difference]: Start difference. First operand 307 states and 451 transitions. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:52:13,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:16,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:18,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:20,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:26,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:29,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:52:30,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:52:30,307 INFO L93 Difference]: Finished difference Result 561 states and 815 transitions. [2024-11-09 06:52:30,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:52:30,308 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-09 06:52:30,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:52:30,311 INFO L225 Difference]: With dead ends: 561 [2024-11-09 06:52:30,311 INFO L226 Difference]: Without dead ends: 397 [2024-11-09 06:52:30,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=273, Invalid=1980, Unknown=7, NotChecked=92, Total=2352 [2024-11-09 06:52:30,313 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 291 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 10 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:52:30,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 644 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 574 Invalid, 4 Unknown, 0 Unchecked, 18.0s Time] [2024-11-09 06:52:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-09 06:52:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 311. [2024-11-09 06:52:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 245 states have (on average 1.3755102040816327) internal successors, (337), 245 states have internal predecessors, (337), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:52:30,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 457 transitions. [2024-11-09 06:52:30,375 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 457 transitions. Word has length 162 [2024-11-09 06:52:30,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:52:30,376 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 457 transitions. [2024-11-09 06:52:30,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:52:30,376 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 457 transitions. [2024-11-09 06:52:30,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:52:30,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:52:30,379 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:52:30,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 06:52:30,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:30,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-09 06:52:30,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:52:30,980 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:52:30,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:52:30,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2126764089, now seen corresponding path program 1 times [2024-11-09 06:52:30,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:52:30,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856469014] [2024-11-09 06:52:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:52:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:52:30,983 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:52:30,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-09 06:52:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:31,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:52:31,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:32,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:34,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:35,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:37,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:38,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:39,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:39,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:40,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:40,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:41,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:41,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:42,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:52:42,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:52:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:52:42,532 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:42,706 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_579 (Array (_ BitVec 32) (_ BitVec 32)))) (= ((_ extract 7 0) (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_579) c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) ((_ extract 7 0) ((_ sign_extend 24) (_ bv0 8))))) is different from false [2024-11-09 06:52:42,773 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:42,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856469014] [2024-11-09 06:52:42,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856469014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:42,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1540866993] [2024-11-09 06:52:42,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:42,773 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:42,775 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:42,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-09 06:52:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:52:44,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:52:45,005 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:45,808 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:52:45,808 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 25 treesize of output 22 [2024-11-09 06:52:47,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:52:50,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:52,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:53,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:54,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:55,090 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 16 treesize of output 11 [2024-11-09 06:52:55,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:56,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:57,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:52:58,129 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 16 treesize of output 11 [2024-11-09 06:52:58,650 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 15 treesize of output 7 [2024-11-09 06:52:58,823 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:52:58,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1540866993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:52:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942934646] [2024-11-09 06:52:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:52:59,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:52:59,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:52:59,580 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:52:59,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 06:53:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:00,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:53:00,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:00,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:53:05,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select 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 17 [2024-11-09 06:53:05,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2024-11-09 06:53:05,720 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 21 treesize of output 13 [2024-11-09 06:53:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:53:06,000 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:06,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942934646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:06,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:53:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15, 18] total 39 [2024-11-09 06:53:06,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742533230] [2024-11-09 06:53:06,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:06,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:53:06,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:06,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:53:06,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1635, Unknown=8, NotChecked=84, Total=1980 [2024-11-09 06:53:06,004 INFO L87 Difference]: Start difference. First operand 311 states and 457 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:53:10,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:53:14,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:53:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:15,826 INFO L93 Difference]: Finished difference Result 553 states and 802 transitions. [2024-11-09 06:53:15,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:53:15,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-09 06:53:15,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:15,829 INFO L225 Difference]: With dead ends: 553 [2024-11-09 06:53:15,830 INFO L226 Difference]: Without dead ends: 387 [2024-11-09 06:53:15,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 505 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=264, Invalid=1802, Unknown=8, NotChecked=88, Total=2162 [2024-11-09 06:53:15,832 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 132 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:15,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 618 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 593 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2024-11-09 06:53:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-09 06:53:15,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 307. [2024-11-09 06:53:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 241 states have (on average 1.3734439834024896) internal successors, (331), 241 states have internal predecessors, (331), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:53:15,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 451 transitions. [2024-11-09 06:53:15,896 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 451 transitions. Word has length 162 [2024-11-09 06:53:15,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:15,897 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 451 transitions. [2024-11-09 06:53:15,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:53:15,897 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 451 transitions. [2024-11-09 06:53:15,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:53:15,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:15,900 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:15,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:16,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:16,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2024-11-09 06:53:16,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:53:16,501 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:16,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:16,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1187969668, now seen corresponding path program 1 times [2024-11-09 06:53:16,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:16,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1245258793] [2024-11-09 06:53:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:16,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:53:16,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:16,503 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:53:16,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-09 06:53:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:16,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:53:17,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:17,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 06:53:17,015 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 91 treesize of output 31 [2024-11-09 06:53:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:53:17,058 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:17,058 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:17,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1245258793] [2024-11-09 06:53:17,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1245258793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:17,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:17,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:53:17,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670610478] [2024-11-09 06:53:17,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:17,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:53:17,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:17,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:53:17,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:53:17,060 INFO L87 Difference]: Start difference. First operand 307 states and 451 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:53:17,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:17,128 INFO L93 Difference]: Finished difference Result 469 states and 689 transitions. [2024-11-09 06:53:17,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:53:17,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-09 06:53:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:17,131 INFO L225 Difference]: With dead ends: 469 [2024-11-09 06:53:17,131 INFO L226 Difference]: Without dead ends: 305 [2024-11-09 06:53:17,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:53:17,133 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 325 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 [2024-11-09 06:53:17,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 325 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:53:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-09 06:53:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-09 06:53:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 239 states have (on average 1.3514644351464435) internal successors, (323), 239 states have internal predecessors, (323), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:53:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 443 transitions. [2024-11-09 06:53:17,177 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 443 transitions. Word has length 162 [2024-11-09 06:53:17,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:17,177 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 443 transitions. [2024-11-09 06:53:17,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:53:17,178 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 443 transitions. [2024-11-09 06:53:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-09 06:53:17,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:17,179 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:17,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:17,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:53:17,380 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:17,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:17,380 INFO L85 PathProgramCache]: Analyzing trace with hash -317990973, now seen corresponding path program 1 times [2024-11-09 06:53:17,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:17,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198899231] [2024-11-09 06:53:17,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:17,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:53:17,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:17,384 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:53:17,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-09 06:53:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:17,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:53:17,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-09 06:53:17,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:53:17,932 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:17,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198899231] [2024-11-09 06:53:17,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198899231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:53:17,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:53:17,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:53:17,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128654962] [2024-11-09 06:53:17,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:53:17,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:53:17,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:53:17,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:53:17,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:53:17,935 INFO L87 Difference]: Start difference. First operand 305 states and 443 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:53:18,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:53:18,109 INFO L93 Difference]: Finished difference Result 519 states and 755 transitions. [2024-11-09 06:53:18,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:53:18,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-11-09 06:53:18,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:53:18,112 INFO L225 Difference]: With dead ends: 519 [2024-11-09 06:53:18,112 INFO L226 Difference]: Without dead ends: 305 [2024-11-09 06:53:18,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:53:18,114 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:53:18,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 481 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:53:18,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-09 06:53:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2024-11-09 06:53:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 239 states have (on average 1.3430962343096233) internal successors, (321), 239 states have internal predecessors, (321), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:53:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 441 transitions. [2024-11-09 06:53:18,173 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 441 transitions. Word has length 162 [2024-11-09 06:53:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:53:18,173 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 441 transitions. [2024-11-09 06:53:18,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:53:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 441 transitions. [2024-11-09 06:53:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:53:18,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:53:18,176 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:53:18,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-09 06:53:18,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:53:18,377 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:53:18,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:53:18,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2004849436, now seen corresponding path program 1 times [2024-11-09 06:53:18,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:53:18,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993290906] [2024-11-09 06:53:18,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:18,379 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:53:18,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:53:18,382 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:53:18,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-09 06:53:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:19,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:53:19,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:21,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:53:23,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:53:26,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:27,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:28,701 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 24 treesize of output 22 [2024-11-09 06:53:29,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:30,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:31,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:31,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:32,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:33,256 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 33 treesize of output 17 [2024-11-09 06:53:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:53:33,842 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:53:37,174 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:53:37,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [993290906] [2024-11-09 06:53:37,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [993290906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:53:37,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [286459171] [2024-11-09 06:53:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:53:37,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:53:37,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:53:37,176 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:53:37,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-09 06:53:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:53:39,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 06:53:39,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:53:42,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:53:46,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 06:53:50,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:51,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:52,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:53,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:54,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:56,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:57,133 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:58,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:53:59,550 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 33 treesize of output 17 [2024-11-09 06:54:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:54:00,061 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:00,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [286459171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:54:00,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170809607] [2024-11-09 06:54:00,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:00,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:54:00,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:54:00,534 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:54:00,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 06:54:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:01,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 06:54:01,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:01,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:54:13,356 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 20 treesize of output 15 [2024-11-09 06:54:19,797 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 19 treesize of output 11 [2024-11-09 06:54:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:54:25,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:54:25,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170809607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:54:25,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:54:25,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 22] total 48 [2024-11-09 06:54:25,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834104230] [2024-11-09 06:54:25,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:54:25,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 06:54:25,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:54:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 06:54:25,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=2369, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 06:54:25,097 INFO L87 Difference]: Start difference. First operand 305 states and 441 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:54:34,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:54:38,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:54:51,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:54:54,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:54:54,774 INFO L93 Difference]: Finished difference Result 549 states and 786 transitions. [2024-11-09 06:54:54,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:54:54,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-09 06:54:54,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:54:54,777 INFO L225 Difference]: With dead ends: 549 [2024-11-09 06:54:54,778 INFO L226 Difference]: Without dead ends: 386 [2024-11-09 06:54:54,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 491 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1171 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=293, Invalid=2569, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 06:54:54,780 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 162 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:54:54,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 633 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 539 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2024-11-09 06:54:54,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-09 06:54:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 317. [2024-11-09 06:54:54,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 251 states have (on average 1.3585657370517927) internal successors, (341), 251 states have internal predecessors, (341), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:54:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 461 transitions. [2024-11-09 06:54:54,855 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 461 transitions. Word has length 163 [2024-11-09 06:54:54,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:54:54,855 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 461 transitions. [2024-11-09 06:54:54,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:54:54,856 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 461 transitions. [2024-11-09 06:54:54,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:54:54,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:54:54,858 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:54:54,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2024-11-09 06:54:55,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 06:54:55,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-09 06:54:55,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -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_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:54:55,459 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:54:55,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:54:55,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2071263142, now seen corresponding path program 1 times [2024-11-09 06:54:55,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:54:55,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [586191934] [2024-11-09 06:54:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:54:55,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:54:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:54:55,464 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:54:55,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2024-11-09 06:54:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:54:56,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:54:56,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:58,869 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:55:01,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:55:04,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:05,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:06,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:07,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:08,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:09,256 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:10,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:10,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:11,690 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 33 treesize of output 17 [2024-11-09 06:55:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:55:12,293 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:15,994 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:55:15,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [586191934] [2024-11-09 06:55:15,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [586191934] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:15,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [375028716] [2024-11-09 06:55:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:15,995 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:55:15,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:55:15,996 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:55:15,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2024-11-09 06:55:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:18,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-09 06:55:18,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:21,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:55:25,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-09 06:55:30,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:31,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:33,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:34,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:35,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:36,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:37,915 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:39,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2024-11-09 06:55:40,603 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 33 treesize of output 17 [2024-11-09 06:55:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 3 proven. 717 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:55:41,148 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:55:41,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [375028716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:55:41,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304072760] [2024-11-09 06:55:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:55:41,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:55:41,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:55:41,642 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:55:41,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 06:55:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:55:42,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 06:55:42,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:55:42,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:55:54,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 06:56:00,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-09 06:56:07,451 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 19 treesize of output 11 [2024-11-09 06:56:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:56:12,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:56:12,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304072760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:56:12,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:56:12,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [22, 22] total 49 [2024-11-09 06:56:12,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687911707] [2024-11-09 06:56:12,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:56:12,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 06:56:12,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:12,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 06:56:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=2469, Unknown=0, NotChecked=0, Total=2756 [2024-11-09 06:56:12,457 INFO L87 Difference]: Start difference. First operand 317 states and 461 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:56:25,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:28,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:40,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:56:44,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:56:44,777 INFO L93 Difference]: Finished difference Result 572 states and 820 transitions. [2024-11-09 06:56:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:56:44,778 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-09 06:56:44,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:56:44,780 INFO L225 Difference]: With dead ends: 572 [2024-11-09 06:56:44,780 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 06:56:44,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 490 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=298, Invalid=2672, Unknown=0, NotChecked=0, Total=2970 [2024-11-09 06:56:44,783 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 172 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:56:44,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 668 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 666 Invalid, 2 Unknown, 0 Unchecked, 24.9s Time] [2024-11-09 06:56:44,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 06:56:44,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 316. [2024-11-09 06:56:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 250 states have (on average 1.356) internal successors, (339), 250 states have internal predecessors, (339), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:56:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 459 transitions. [2024-11-09 06:56:44,852 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 459 transitions. Word has length 163 [2024-11-09 06:56:44,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:56:44,853 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 459 transitions. [2024-11-09 06:56:44,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 8 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:56:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 459 transitions. [2024-11-09 06:56:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:56:44,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:56:44,856 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:56:44,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:45,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:45,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2024-11-09 06:56:45,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -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_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:45,457 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:56:45,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:56:45,458 INFO L85 PathProgramCache]: Analyzing trace with hash -2138862942, now seen corresponding path program 1 times [2024-11-09 06:56:45,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:56:45,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512737388] [2024-11-09 06:56:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:45,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:56:45,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:56:45,459 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:56:45,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-09 06:56:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:46,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:56:46,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:56:48,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:56:49,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:51,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:52,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:53,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:54,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:54,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:55,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:55,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:56,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:56:56,676 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 15 treesize of output 7 [2024-11-09 06:56:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:56:56,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:57,364 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:56:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512737388] [2024-11-09 06:56:57,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512737388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:56:57,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1406656874] [2024-11-09 06:56:57,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:56:57,365 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:56:57,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:56:57,366 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:56:57,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-09 06:56:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:56:58,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 06:56:58,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:01,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:57:03,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:05,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:06,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:07,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:07,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:08,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:09,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:10,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:10,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:11,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:57:12,256 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 16 treesize of output 8 [2024-11-09 06:57:12,661 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:57:12,661 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:14,437 WARN L851 $PredicateComparison]: unable to prove that (forall ((~last_1_var_1_16~0 (_ BitVec 8)) (v_ArrVal_975 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 ((_ zero_extend 24) ~last_1_var_1_16~0))) (or (not (bvult (select (select |c_#memory_int| c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)) (bvult (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_975) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)))) is different from false [2024-11-09 06:57:14,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1406656874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:14,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053073017] [2024-11-09 06:57:14,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:14,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:57:14,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:57:14,493 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:57:14,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 06:57:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:15,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 06:57:15,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:16,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:57:20,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:57:20,622 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 16 treesize of output 8 [2024-11-09 06:57:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:57:21,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:57:21,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053073017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:57:21,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:57:21,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18, 18] total 43 [2024-11-09 06:57:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440898246] [2024-11-09 06:57:21,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:57:21,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 06:57:21,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:57:21,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 06:57:21,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2353, Unknown=44, NotChecked=100, Total=2756 [2024-11-09 06:57:21,084 INFO L87 Difference]: Start difference. First operand 316 states and 459 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:57:24,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:27,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:28,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:30,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:33,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:57:36,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:36,034 INFO L93 Difference]: Finished difference Result 566 states and 811 transitions. [2024-11-09 06:57:36,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:57:36,035 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-09 06:57:36,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:36,037 INFO L225 Difference]: With dead ends: 566 [2024-11-09 06:57:36,037 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 06:57:36,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=287, Invalid=2643, Unknown=44, NotChecked=106, Total=3080 [2024-11-09 06:57:36,042 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 204 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:36,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 808 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 647 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2024-11-09 06:57:36,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 06:57:36,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 329. [2024-11-09 06:57:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 263 states have (on average 1.361216730038023) internal successors, (358), 263 states have internal predecessors, (358), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:57:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 478 transitions. [2024-11-09 06:57:36,105 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 478 transitions. Word has length 163 [2024-11-09 06:57:36,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:36,106 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 478 transitions. [2024-11-09 06:57:36,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:57:36,107 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 478 transitions. [2024-11-09 06:57:36,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:57:36,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:36,109 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:57:36,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:36,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 06:57:36,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:36,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:57:36,710 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:36,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:36,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1937249636, now seen corresponding path program 1 times [2024-11-09 06:57:36,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:36,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362126528] [2024-11-09 06:57:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:36,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:57:36,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:36,713 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:57:36,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2024-11-09 06:57:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:37,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:57:37,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:39,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:41,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:43,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:44,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:45,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:45,779 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 16 treesize of output 11 [2024-11-09 06:57:46,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:46,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:47,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:47,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:57:48,269 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 15 treesize of output 7 [2024-11-09 06:57:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:57:48,485 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:57:48,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:57:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362126528] [2024-11-09 06:57:48,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362126528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:57:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [723222014] [2024-11-09 06:57:48,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:57:48,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:48,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:57:48,968 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:57:48,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-09 06:57:50,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:57:50,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-09 06:57:50,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:57:53,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:57:55,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:57,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:58,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:57:59,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:00,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:01,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:02,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:03,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:04,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-09 06:58:05,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:05,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:05,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-11-09 06:58:06,367 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:58:06,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:06,823 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1080 (Array (_ BitVec 32) (_ BitVec 32)))) (bvult (select (select (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_1080) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) ((_ zero_extend 24) c_~last_1_var_1_16~0))) is different from false [2024-11-09 06:58:08,153 WARN L851 $PredicateComparison]: unable to prove that (forall ((~last_1_var_1_16~0 (_ BitVec 8)) (v_ArrVal_1079 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1080 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 ((_ zero_extend 24) ~last_1_var_1_16~0))) (or (not (bvult (select (select |c_#memory_int| c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)) (bvult (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1079) c_~var_1_16_Pointer~0.base v_ArrVal_1080) c_~var_1_3_Pointer~0.base) c_~var_1_3_Pointer~0.offset) .cse0)))) is different from false [2024-11-09 06:58:08,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [723222014] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:58:08,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847323753] [2024-11-09 06:58:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:08,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:58:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:58:08,211 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:58:08,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 06:58:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:08,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:58:08,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:09,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:58:14,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:58:14,885 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 17 treesize of output 12 [2024-11-09 06:58:15,220 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 16 treesize of output 8 [2024-11-09 06:58:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:58:15,701 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:58:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847323753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:58:15,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 06:58:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [18, 19] total 45 [2024-11-09 06:58:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977553687] [2024-11-09 06:58:15,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:58:15,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 06:58:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:58:15,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 06:58:15,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=2546, Unknown=53, NotChecked=210, Total=3080 [2024-11-09 06:58:15,704 INFO L87 Difference]: Start difference. First operand 329 states and 478 transitions. Second operand has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:58:20,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:23,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:29,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:30,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:58:31,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:58:31,092 INFO L93 Difference]: Finished difference Result 579 states and 830 transitions. [2024-11-09 06:58:31,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 06:58:31,093 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-09 06:58:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:58:31,095 INFO L225 Difference]: With dead ends: 579 [2024-11-09 06:58:31,096 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 06:58:31,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1104 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=301, Invalid=2846, Unknown=53, NotChecked=222, Total=3422 [2024-11-09 06:58:31,098 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 197 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:58:31,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 842 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2024-11-09 06:58:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 06:58:31,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 329. [2024-11-09 06:58:31,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 263 states have (on average 1.361216730038023) internal successors, (358), 263 states have internal predecessors, (358), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:58:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 478 transitions. [2024-11-09 06:58:31,176 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 478 transitions. Word has length 163 [2024-11-09 06:58:31,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:58:31,177 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 478 transitions. [2024-11-09 06:58:31,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.0) internal successors, (66), 10 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:58:31,178 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 478 transitions. [2024-11-09 06:58:31,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:58:31,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:58:31,179 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:58:31,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:31,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:31,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2024-11-09 06:58:31,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:58:31,780 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:58:31,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:58:31,781 INFO L85 PathProgramCache]: Analyzing trace with hash 166772910, now seen corresponding path program 1 times [2024-11-09 06:58:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:58:31,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931102388] [2024-11-09 06:58:31,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:31,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:58:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:58:31,783 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:58:31,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2024-11-09 06:58:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:32,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-09 06:58:32,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:33,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:58:37,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:39,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:40,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:41,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:42,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:42,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:43,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:44,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:44,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:45,267 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 15 treesize of output 7 [2024-11-09 06:58:45,394 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:58:45,394 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:58:45,996 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:58:45,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931102388] [2024-11-09 06:58:45,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [931102388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:58:45,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [151582839] [2024-11-09 06:58:45,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:58:45,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:58:45,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:58:45,998 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:58:45,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-09 06:58:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:58:48,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:58:48,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:58:49,321 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:58:49,322 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 25 treesize of output 22 [2024-11-09 06:58:51,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:58:54,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:56,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:57,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:58,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:58:59,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:59:00,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:59:01,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:59:02,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:59:03,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 06:59:03,585 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 15 treesize of output 7 [2024-11-09 06:59:03,599 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 1 proven. 719 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 06:59:03,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [151582839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:03,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367147476] [2024-11-09 06:59:03,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:03,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:59:03,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:59:03,931 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:59:03,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 06:59:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:04,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:59:04,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:09,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:59:10,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2024-11-09 06:59:11,384 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 63 treesize of output 35 [2024-11-09 06:59:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-09 06:59:12,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-09 06:59:13,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367147476] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:13,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:59:13,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [18, 18, 14] total 52 [2024-11-09 06:59:13,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870833270] [2024-11-09 06:59:13,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:59:13,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 06:59:13,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:59:13,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 06:59:13,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=2635, Unknown=6, NotChecked=0, Total=2970 [2024-11-09 06:59:13,486 INFO L87 Difference]: Start difference. First operand 329 states and 478 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:59:16,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:18,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:20,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:21,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:23,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:59:25,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:59:25,229 INFO L93 Difference]: Finished difference Result 376 states and 537 transitions. [2024-11-09 06:59:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 06:59:25,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 163 [2024-11-09 06:59:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:59:25,240 INFO L225 Difference]: With dead ends: 376 [2024-11-09 06:59:25,240 INFO L226 Difference]: Without dead ends: 374 [2024-11-09 06:59:25,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 674 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1463 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=345, Invalid=3071, Unknown=6, NotChecked=0, Total=3422 [2024-11-09 06:59:25,242 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 39 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:59:25,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 824 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-09 06:59:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-09 06:59:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 363. [2024-11-09 06:59:25,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 297 states have (on average 1.3569023569023568) internal successors, (403), 297 states have internal predecessors, (403), 60 states have call successors, (60), 5 states have call predecessors, (60), 5 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-09 06:59:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 523 transitions. [2024-11-09 06:59:25,302 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 523 transitions. Word has length 163 [2024-11-09 06:59:25,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:59:25,302 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 523 transitions. [2024-11-09 06:59:25,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-09 06:59:25,303 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 523 transitions. [2024-11-09 06:59:25,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-09 06:59:25,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:59:25,304 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:59:25,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-09 06:59:25,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-09 06:59:25,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2024-11-09 06:59:25,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:59:25,905 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:59:25,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:59:25,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1904727989, now seen corresponding path program 1 times [2024-11-09 06:59:25,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:59:25,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350407255] [2024-11-09 06:59:25,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:25,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 06:59:25,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:59:25,908 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 06:59:25,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2024-11-09 06:59:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:27,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 06:59:27,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:27,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:29,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:31,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:33,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:34,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:35,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:36,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:37,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:38,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:38,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:39,760 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:40,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:40,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:40,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-09 06:59:40,689 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 716 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 06:59:40,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:59:41,101 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1250 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1251 (Array (_ BitVec 32) (_ BitVec 32)))) (= ((_ extract 7 0) (select (select (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base v_ArrVal_1250) c_~var_1_16_Pointer~0.base v_ArrVal_1251) c_~var_1_10_Pointer~0.base) c_~var_1_10_Pointer~0.offset)) ((_ extract 7 0) ((_ sign_extend 24) (_ bv0 8))))) is different from false [2024-11-09 06:59:41,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:59:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350407255] [2024-11-09 06:59:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [350407255] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:59:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1473651852] [2024-11-09 06:59:41,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:59:41,163 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:59:41,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:59:41,164 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:59:41,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2024-11-09 06:59:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:59:43,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-09 06:59:43,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:59:44,402 INFO L349 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2024-11-09 06:59:44,403 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 25 treesize of output 22 [2024-11-09 06:59:47,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 06:59:50,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:51,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:52,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:53,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:54,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:55,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:56,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:56,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2024-11-09 06:59:57,452 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 16 treesize of output 8 [2024-11-09 06:59:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 06:59:57,782 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:00:05,821 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1290 (Array (_ BitVec 32) (_ BitVec 32)))) (not (let ((.cse0 ((_ zero_extend 24) c_~last_1_var_1_16~0))) (bvugt (bvudiv .cse0 (select (select (store |c_#memory_int| |c_~#var_1_18~0.base| v_ArrVal_1290) c_~var_1_5_Pointer~0.base) c_~var_1_5_Pointer~0.offset)) .cse0)))) is different from false [2024-11-09 07:00:06,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1473651852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:00:06,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891552316] [2024-11-09 07:00:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:06,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:00:06,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:00:06,033 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:00:06,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_257b9224-26d8-462a-b726-2e000f438ad6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-09 07:00:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:07,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 07:00:07,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:00:17,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-09 07:00:22,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 07:00:24,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 07:00:26,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 07:00:28,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 70 [2024-11-09 07:00:30,914 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 152 treesize of output 94 [2024-11-09 07:00:32,208 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 160 treesize of output 122 [2024-11-09 07:00:33,615 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 160 treesize of output 122 [2024-11-09 07:00:34,887 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 07:00:34,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 324 treesize of output 134 [2024-11-09 07:00:36,576 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 583 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-09 07:00:36,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:00:40,273 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1332 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_int| c_~var_1_13_Pointer~0.base v_ArrVal_1332))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_1_Pointer~0.offset)) (select .cse1 c_~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_9_Pointer~0.base))) (concat (select .cse4 (bvadd c_~var_1_9_Pointer~0.offset (_ bv4 32))) (select .cse4 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) is different from false [2024-11-09 07:00:40,337 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1332 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store (store |c_#memory_int| c_~var_1_16_Pointer~0.base v_ArrVal_1331) c_~var_1_13_Pointer~0.base v_ArrVal_1332))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse2 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 (bvadd (_ bv4 32) c_~var_1_1_Pointer~0.offset)) (select .cse1 c_~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse3 (let ((.cse4 (select .cse2 c_~var_1_9_Pointer~0.base))) (concat (select .cse4 (bvadd c_~var_1_9_Pointer~0.offset (_ bv4 32))) (select .cse4 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3)))))) is different from false [2024-11-09 07:00:40,450 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1331 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1332 (Array (_ BitVec 32) (_ BitVec 32))) (|v_skolemized_q#valueAsBitvector_234| (_ BitVec 64)) (~var_1_1_Pointer~0.offset (_ BitVec 32))) (let ((.cse6 (bvadd c_~var_1_9_Pointer~0.offset (_ bv4 32)))) (or (let ((.cse2 (bvadd (_ bv4 32) ~var_1_1_Pointer~0.offset))) (let ((.cse3 (store (store (store |c_#memory_int| c_~var_1_1_Pointer~0.base (store (store (select |c_#memory_int| c_~var_1_1_Pointer~0.base) ~var_1_1_Pointer~0.offset ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_234|)) .cse2 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_234|))) c_~var_1_16_Pointer~0.base v_ArrVal_1331) c_~var_1_13_Pointer~0.base v_ArrVal_1332))) (fp.eq (let ((.cse0 (let ((.cse1 (select .cse3 c_~var_1_1_Pointer~0.base))) (concat (select .cse1 .cse2) (select .cse1 ~var_1_1_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) (let ((.cse4 (let ((.cse5 (select .cse3 c_~var_1_9_Pointer~0.base))) (concat (select .cse5 .cse6) (select .cse5 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4)))))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_234|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_234|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_234|)) (let ((.cse7 (let ((.cse8 (select |c_#memory_int| c_~var_1_9_Pointer~0.base))) (concat (select .cse8 .cse6) (select .cse8 c_~var_1_9_Pointer~0.offset))))) (fp ((_ extract 63 63) .cse7) ((_ extract 62 52) .cse7) ((_ extract 51 0) .cse7)))))))) is different from false [2024-11-09 07:00:40,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891552316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:00:40,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:00:40,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17, 18] total 49 [2024-11-09 07:00:40,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912048455] [2024-11-09 07:00:40,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:00:40,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 07:00:40,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 07:00:40,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 07:00:40,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=2880, Unknown=20, NotChecked=570, Total=3782 [2024-11-09 07:00:40,721 INFO L87 Difference]: Start difference. First operand 363 states and 523 transitions. Second operand has 50 states, 49 states have (on average 5.122448979591836) internal successors, (251), 47 states have internal predecessors, (251), 27 states have call successors, (60), 27 states have call predecessors, (60), 28 states have return successors, (60), 27 states have call predecessors, (60), 27 states have call successors, (60)